diff --git a/prowler/CHANGELOG.md b/prowler/CHANGELOG.md
index 89cec16b9a..7e540c5097 100644
--- a/prowler/CHANGELOG.md
+++ b/prowler/CHANGELOG.md
@@ -19,6 +19,7 @@ All notable changes to the **Prowler SDK** are documented in this file.
 - Add `repository_dependency_scanning_enabled` check for GitHub provider. [(#7771)](https://github.com/prowler-cloud/prowler/pull/7771)
 - Add `repository_secret_scanning_enabled` check for GitHub provider. [(#7759)](https://github.com/prowler-cloud/prowler/pull/7759)
 - Add `repository_default_branch_requires_codeowners_review` check for GitHub provider. [(#7753)](https://github.com/prowler-cloud/prowler/pull/7753)
+- Add `organization_members_inactive` check for GitHub provider. [(#XXXX)](https://github.com/prowler-cloud/prowler/pull/XXXX)
 
 ### Fixed
 - Fix `m365_powershell test_credentials` to use sanitized credentials. [(#7761)](https://github.com/prowler-cloud/prowler/pull/7761)
diff --git a/prowler/providers/github/services/organization/organization_members_inactive/__init__.py b/prowler/providers/github/services/organization/organization_members_inactive/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/prowler/providers/github/services/organization/organization_members_inactive/organization_members_inactive.metadata.json b/prowler/providers/github/services/organization/organization_members_inactive/organization_members_inactive.metadata.json
new file mode 100644
index 0000000000..d6297f44d8
--- /dev/null
+++ b/prowler/providers/github/services/organization/organization_members_inactive/organization_members_inactive.metadata.json
@@ -0,0 +1,30 @@
+{
+  "Provider": "github",
+  "CheckID": "organization_members_inactive",
+  "CheckTitle": "Ensure organization members are not inactive for extended periods",
+  "CheckType": [],
+  "ServiceName": "organization",
+  "SubServiceName": "",
+  "ResourceIdTemplate": "",
+  "Severity": "high",
+  "ResourceType": "GitHubOrganization",
+  "Description": "Monitor and review user accounts that have been inactive for a significant period. Inactive accounts increase the risk of unauthorized access, particularly if they have elevated privileges. By removing or deactivating these accounts, organizations can reduce their exposure to potential attacks.",
+  "Risk": "Inactive user accounts pose security risks as they may be compromised without detection, especially if they retain elevated privileges or access to sensitive resources.",
+  "RelatedUrl": "https://docs.github.com/en/organizations/managing-membership-in-your-organization/removing-a-member-from-your-organization",
+  "Remediation": {
+    "Code": {
+      "CLI": "",
+      "NativeIaC": "",
+      "Other": "",
+      "Terraform": ""
+    },
+    "Recommendation": {
+      "Text": "Review inactive organization members and consider removing or deactivating accounts that have been inactive for extended periods. Establish a regular review process for user access and implement automated monitoring for inactive accounts.",
+      "Url": "https://docs.github.com/en/organizations/managing-membership-in-your-organization/removing-a-member-from-your-organization"
+    }
+  },
+  "Categories": [],
+  "DependsOn": [],
+  "RelatedTo": [],
+  "Notes": ""
+}
diff --git a/prowler/providers/github/services/organization/organization_members_inactive/organization_members_inactive.py b/prowler/providers/github/services/organization/organization_members_inactive/organization_members_inactive.py
new file mode 100644
index 0000000000..5b1f7392ec
--- /dev/null
+++ b/prowler/providers/github/services/organization/organization_members_inactive/organization_members_inactive.py
@@ -0,0 +1,60 @@
+from datetime import datetime, timedelta, timezone
+from typing import List
+
+from prowler.lib.check.models import Check, CheckReportGithub
+from prowler.providers.github.services.organization.organization_client import (
+    organization_client,
+)
+
+
+class organization_members_inactive(Check):
+    """Check if organization members have been inactive for extended periods.
+
+    This class verifies whether organization members have recent activity within the last 30 days.
+    Inactive accounts increase the risk of unauthorized access, particularly if they have elevated privileges.
+    """
+
+    def execute(self) -> List[CheckReportGithub]:
+        """Execute the Github Organization Members Inactive check.
+
+        Iterates over all organizations and checks if members have been inactive for extended periods.
+
+        Returns:
+            List[CheckReportGithub]: A list of reports for each organization
+        """
+        findings = []
+
+        # Max inactivity threshold is 30 days due to GitHub API limitation
+        inactivity_threshold = timedelta(days=30)
+        current_time = datetime.now(timezone.utc)
+
+        for org in organization_client.organizations.values():
+            report = CheckReportGithub(metadata=self.metadata(), resource=org)
+
+            inactive_members = []
+
+            for member in org.members:
+                is_inactive = False
+
+                if member.last_activity is None:
+                    is_inactive = True
+                else:
+                    time_since_activity = current_time - member.last_activity
+                    if time_since_activity > inactivity_threshold:
+                        is_inactive = True
+
+                if is_inactive:
+                    inactive_members.append(member.login)
+
+            if inactive_members:
+                report.status = "FAIL"
+                report.status_extended = f"Organization {org.name} has {len(inactive_members)} inactive members: {', '.join(inactive_members[:5])}{'...' if len(inactive_members) > 5 else ''}"
+            else:
+                report.status = "PASS"
+                report.status_extended = (
+                    f"Organization {org.name} has no inactive members detected"
+                )
+
+            findings.append(report)
+
+        return findings
diff --git a/prowler/providers/github/services/organization/organization_service.py b/prowler/providers/github/services/organization/organization_service.py
index 3f8f8dca95..9ac4cea597 100644
--- a/prowler/providers/github/services/organization/organization_service.py
+++ b/prowler/providers/github/services/organization/organization_service.py
@@ -1,3 +1,4 @@
+from datetime import datetime
 from typing import Optional
 
 from pydantic import BaseModel
@@ -24,10 +25,14 @@ class Organization(GithubService):
                         logger.error(
                             f"{error.__class__.__name__}[{error.__traceback__.tb_lineno}]: {error}"
                         )
+
+                    members = self._get_organization_members_with_activity(client, org)
+
                     organizations[org.id] = Org(
                         id=org.id,
                         name=org.login,
                         mfa_required=require_mfa,
+                        members=members,
                     )
         except Exception as error:
             logger.error(
@@ -35,6 +40,67 @@ class Organization(GithubService):
             )
         return organizations
 
+    def _get_organization_members_with_activity(self, client, org):
+        """Get organization members with their last activity information."""
+        members = []
+        try:
+            for member in org.get_members():
+                try:
+                    last_activity = self._get_user_last_activity(client, member.login)
+
+                    members.append(
+                        OrgMember(
+                            id=member.id,
+                            login=member.login,
+                            last_activity=last_activity,
+                        )
+                    )
+                except Exception as error:
+                    logger.error(
+                        f"{error.__class__.__name__}[{error.__traceback__.tb_lineno}]: {error}"
+                    )
+                    members.append(
+                        OrgMember(
+                            id=member.id,
+                            login=member.login,
+                            last_activity=None,
+                        )
+                    )
+        except Exception as error:
+            logger.error(
+                f"{error.__class__.__name__}[{error.__traceback__.tb_lineno}]: {error}"
+            )
+
+        return members
+
+    def _get_user_last_activity(self, client, username):
+        """Get the last activity date for a user based on their recent events."""
+        try:
+            user = client.get_user(username)
+            events = user.get_events()
+
+            # Get the first (most recent) event
+            try:
+                latest_event = events[0]
+                return latest_event.created_at
+            except (IndexError, StopIteration):
+                # No events found - user has no recent activity
+                return None
+
+        except Exception as error:
+            logger.error(
+                f"Error getting events for user {username}: {error.__class__.__name__}[{error.__traceback__.tb_lineno}]: {error}"
+            )
+            return None
+
+
+class OrgMember(BaseModel):
+    """Model for Github Organization Member"""
+
+    id: int
+    login: str
+    last_activity: Optional[datetime] = None
+
 
 class Org(BaseModel):
     """Model for Github Organization"""
@@ -42,3 +108,4 @@ class Org(BaseModel):
     id: int
     name: str
     mfa_required: Optional[bool] = False
+    members: list[OrgMember] = []
diff --git a/tests/providers/github/services/organization/organization_members_inactive/organization_members_inactive_test.py b/tests/providers/github/services/organization/organization_members_inactive/organization_members_inactive_test.py
new file mode 100644
index 0000000000..aca73a3a68
--- /dev/null
+++ b/tests/providers/github/services/organization/organization_members_inactive/organization_members_inactive_test.py
@@ -0,0 +1,287 @@
+from datetime import datetime, timedelta, timezone
+from unittest import mock
+
+from prowler.providers.github.services.organization.organization_service import (
+    Org,
+    OrgMember,
+)
+from tests.providers.github.github_fixtures import set_mocked_github_provider
+
+
+class Test_organization_members_inactive:
+    def test_no_organizations(self):
+        organization_client = mock.MagicMock
+        organization_client.organizations = {}
+
+        with (
+            mock.patch(
+                "prowler.providers.common.provider.Provider.get_global_provider",
+                return_value=set_mocked_github_provider(),
+            ),
+            mock.patch(
+                "prowler.providers.github.services.organization.organization_members_inactive.organization_members_inactive.organization_client",
+                new=organization_client,
+            ),
+        ):
+            from prowler.providers.github.services.organization.organization_members_inactive.organization_members_inactive import (
+                organization_members_inactive,
+            )
+
+            check = organization_members_inactive()
+            result = check.execute()
+            assert len(result) == 0
+
+    def test_organization_with_no_members(self):
+        organization_client = mock.MagicMock
+        org_name = "test-organization"
+        organization_client.organizations = {
+            1: Org(
+                id=1,
+                name=org_name,
+                mfa_required=True,
+                members=[],
+            ),
+        }
+
+        with (
+            mock.patch(
+                "prowler.providers.common.provider.Provider.get_global_provider",
+                return_value=set_mocked_github_provider(),
+            ),
+            mock.patch(
+                "prowler.providers.github.services.organization.organization_members_inactive.organization_members_inactive.organization_client",
+                new=organization_client,
+            ),
+        ):
+            from prowler.providers.github.services.organization.organization_members_inactive.organization_members_inactive import (
+                organization_members_inactive,
+            )
+
+            check = organization_members_inactive()
+            result = check.execute()
+            assert len(result) == 1
+            assert result[0].resource_id == 1
+            assert result[0].resource_name == org_name
+            assert result[0].status == "PASS"
+            assert "no inactive members detected" in result[0].status_extended
+
+    def test_organization_with_active_members(self):
+        organization_client = mock.MagicMock
+        org_name = "test-organization"
+        organization_client.organizations = {
+            1: Org(
+                id=1,
+                name=org_name,
+                mfa_required=True,
+                members=[
+                    OrgMember(
+                        id=123,
+                        login="active_user",
+                        last_activity=datetime.now(timezone.utc) - timedelta(days=5),
+                    )
+                ],
+            ),
+        }
+
+        with (
+            mock.patch(
+                "prowler.providers.common.provider.Provider.get_global_provider",
+                return_value=set_mocked_github_provider(),
+            ),
+            mock.patch(
+                "prowler.providers.github.services.organization.organization_members_inactive.organization_members_inactive.organization_client",
+                new=organization_client,
+            ),
+        ):
+            from prowler.providers.github.services.organization.organization_members_inactive.organization_members_inactive import (
+                organization_members_inactive,
+            )
+
+            check = organization_members_inactive()
+            result = check.execute()
+            assert len(result) == 1
+            assert result[0].resource_id == 1
+            assert result[0].resource_name == org_name
+            assert result[0].status == "PASS"
+            assert "no inactive members detected" in result[0].status_extended
+
+    def test_organization_with_inactive_members_no_activity(self):
+        organization_client = mock.MagicMock
+        org_name = "test-organization"
+        organization_client.organizations = {
+            1: Org(
+                id=1,
+                name=org_name,
+                mfa_required=True,
+                members=[
+                    OrgMember(
+                        id=123,
+                        login="inactive_user",
+                        last_activity=None,
+                    )
+                ],
+            ),
+        }
+
+        with (
+            mock.patch(
+                "prowler.providers.common.provider.Provider.get_global_provider",
+                return_value=set_mocked_github_provider(),
+            ),
+            mock.patch(
+                "prowler.providers.github.services.organization.organization_members_inactive.organization_members_inactive.organization_client",
+                new=organization_client,
+            ),
+        ):
+            from prowler.providers.github.services.organization.organization_members_inactive.organization_members_inactive import (
+                organization_members_inactive,
+            )
+
+            check = organization_members_inactive()
+            result = check.execute()
+            assert len(result) == 1
+            assert result[0].resource_id == 1
+            assert result[0].resource_name == org_name
+            assert result[0].status == "FAIL"
+            assert "1 inactive members" in result[0].status_extended
+            assert "inactive_user" in result[0].status_extended
+
+    def test_organization_with_inactive_members_old_activity(self):
+        organization_client = mock.MagicMock
+        org_name = "test-organization"
+        organization_client.organizations = {
+            1: Org(
+                id=1,
+                name=org_name,
+                mfa_required=True,
+                members=[
+                    OrgMember(
+                        id=123,
+                        login="old_inactive_user",
+                        last_activity=datetime.now(timezone.utc) - timedelta(days=35),
+                    )
+                ],
+            ),
+        }
+
+        with (
+            mock.patch(
+                "prowler.providers.common.provider.Provider.get_global_provider",
+                return_value=set_mocked_github_provider(),
+            ),
+            mock.patch(
+                "prowler.providers.github.services.organization.organization_members_inactive.organization_members_inactive.organization_client",
+                new=organization_client,
+            ),
+        ):
+            from prowler.providers.github.services.organization.organization_members_inactive.organization_members_inactive import (
+                organization_members_inactive,
+            )
+
+            check = organization_members_inactive()
+            result = check.execute()
+            assert len(result) == 1
+            assert result[0].resource_id == 1
+            assert result[0].resource_name == org_name
+            assert result[0].status == "FAIL"
+            assert "1 inactive members" in result[0].status_extended
+            assert "old_inactive_user" in result[0].status_extended
+
+    def test_organization_with_mixed_members(self):
+        organization_client = mock.MagicMock
+        org_name = "test-organization"
+        organization_client.organizations = {
+            1: Org(
+                id=1,
+                name=org_name,
+                mfa_required=True,
+                members=[
+                    OrgMember(
+                        id=123,
+                        login="active_member",
+                        last_activity=datetime.now(timezone.utc) - timedelta(days=5),
+                    ),
+                    OrgMember(
+                        id=124,
+                        login="inactive_user1",
+                        last_activity=None,
+                    ),
+                    OrgMember(
+                        id=125,
+                        login="inactive_user2",
+                        last_activity=datetime.now(timezone.utc) - timedelta(days=35),
+                    ),
+                ],
+            ),
+        }
+
+        with (
+            mock.patch(
+                "prowler.providers.common.provider.Provider.get_global_provider",
+                return_value=set_mocked_github_provider(),
+            ),
+            mock.patch(
+                "prowler.providers.github.services.organization.organization_members_inactive.organization_members_inactive.organization_client",
+                new=organization_client,
+            ),
+        ):
+            from prowler.providers.github.services.organization.organization_members_inactive.organization_members_inactive import (
+                organization_members_inactive,
+            )
+
+            check = organization_members_inactive()
+            result = check.execute()
+            assert len(result) == 1
+            assert result[0].resource_id == 1
+            assert result[0].resource_name == org_name
+            assert result[0].status == "FAIL"
+            assert "2 inactive members" in result[0].status_extended
+            assert "inactive_user1" in result[0].status_extended
+            assert "inactive_user2" in result[0].status_extended
+            assert "active_member" not in result[0].status_extended
+
+    def test_organization_with_many_inactive_members(self):
+        organization_client = mock.MagicMock
+        org_name = "test-organization"
+        # Create many inactive members to test truncation
+        inactive_members = []
+        for i in range(10):
+            inactive_members.append(
+                OrgMember(
+                    id=100 + i,
+                    login=f"inactive_user_{i}",
+                    last_activity=None,
+                )
+            )
+
+        organization_client.organizations = {
+            1: Org(
+                id=1,
+                name=org_name,
+                mfa_required=True,
+                members=inactive_members,
+            ),
+        }
+
+        with (
+            mock.patch(
+                "prowler.providers.common.provider.Provider.get_global_provider",
+                return_value=set_mocked_github_provider(),
+            ),
+            mock.patch(
+                "prowler.providers.github.services.organization.organization_members_inactive.organization_members_inactive.organization_client",
+                new=organization_client,
+            ),
+        ):
+            from prowler.providers.github.services.organization.organization_members_inactive.organization_members_inactive import (
+                organization_members_inactive,
+            )
+
+            check = organization_members_inactive()
+            result = check.execute()
+            assert len(result) == 1
+            assert result[0].resource_id == 1
+            assert result[0].resource_name == org_name
+            assert result[0].status == "FAIL"
+            assert "10 inactive members" in result[0].status_extended
+            assert "..." in result[0].status_extended  # Should truncate after 5 names
diff --git a/tests/providers/github/services/organization/organization_service_test.py b/tests/providers/github/services/organization/organization_service_test.py
index 7720841698..9229701b19 100644
--- a/tests/providers/github/services/organization/organization_service_test.py
+++ b/tests/providers/github/services/organization/organization_service_test.py
@@ -2,6 +2,7 @@ from unittest.mock import patch
 
 from prowler.providers.github.services.organization.organization_service import (
     Org,
+    OrgMember,
     Organization,
 )
 from tests.providers.github.github_fixtures import set_mocked_github_provider
@@ -13,6 +14,13 @@ def mock_list_organizations(_):
             id=1,
             name="test-organization",
             mfa_required=True,
+            members=[
+                OrgMember(
+                    id=123,
+                    login="test-user",
+                    last_activity=None,
+                )
+            ],
         ),
     }
 
@@ -35,3 +43,12 @@ class Test_Repository_Service:
         assert len(repository_service.organizations) == 1
         assert repository_service.organizations[1].name == "test-organization"
         assert repository_service.organizations[1].mfa_required
+
+    def test_list_organizations_with_members(self):
+        repository_service = Organization(set_mocked_github_provider())
+        assert len(repository_service.organizations) == 1
+        org = repository_service.organizations[1]
+        assert len(org.members) == 1
+        assert org.members[0].login == "test-user"
+        assert org.members[0].id == 123
+        assert org.members[0].last_activity is None