diff --git a/api/api_keys/migrations/0004_add_created_by.py b/api/api_keys/migrations/0004_add_created_by.py
new file mode 100644
index 000000000000..7aa0990a0dc0
--- /dev/null
+++ b/api/api_keys/migrations/0004_add_created_by.py
@@ -0,0 +1,26 @@
+# Generated by Django 5.2.11 on 2026-03-04 18:29
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("api_keys", "0003_masterapikey_is_admin"),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="masterapikey",
+            name="created_by",
+            field=models.ForeignKey(
+                blank=True,
+                null=True,
+                on_delete=django.db.models.deletion.SET_NULL,
+                to=settings.AUTH_USER_MODEL,
+            ),
+        ),
+    ]
diff --git a/api/api_keys/models.py b/api/api_keys/models.py
index 7fcfaaf589a7..2dcfcfe0f33b 100644
--- a/api/api_keys/models.py
+++ b/api/api_keys/models.py
@@ -28,6 +28,10 @@ class MasterAPIKey(AbstractAPIKey, LifecycleModelMixin, SoftDeleteObject):  # ty
     objects = MasterAPIKeyManager()  # type: ignore[misc]
     is_admin = models.BooleanField(default=True)
 
+    created_by = models.ForeignKey(
+        "users.FFAdminUser", on_delete=models.SET_NULL, null=True, blank=True
+    )
+
     @hook(BEFORE_UPDATE, when="is_admin", was=False, is_now=True)
     def delete_role_api_keys(  # type: ignore[no-untyped-def]
         self,
diff --git a/api/api_keys/serializers.py b/api/api_keys/serializers.py
index 3f43b7cf4e7b..9240ab4d4e1e 100644
--- a/api/api_keys/serializers.py
+++ b/api/api_keys/serializers.py
@@ -24,8 +24,9 @@ class Meta:
             "key",
             "is_admin",
             "has_expired",
+            "created_by",
         )
-        read_only_fields = ("prefix", "created", "key")
+        read_only_fields = ("prefix", "created", "key", "created_by")
 
     def create(self, validated_data):  # type: ignore[no-untyped-def]
         obj, key = MasterAPIKey.objects.create_key(**validated_data)
diff --git a/api/api_keys/views.py b/api/api_keys/views.py
index 79d1f2d3d341..4d1914c17ed8 100644
--- a/api/api_keys/views.py
+++ b/api/api_keys/views.py
@@ -1,10 +1,12 @@
 from rest_framework import viewsets
+from rest_framework.authentication import BaseAuthentication
 from rest_framework.permissions import IsAuthenticated
 
 from organisations.permissions.permissions import (
     NestedIsOrganisationAdminPermission,
 )
 
+from .authentication import MasterAPIKeyAuthentication
 from .models import MasterAPIKey
 from .serializers import MasterAPIKeySerializer
 
@@ -20,5 +22,16 @@ def get_queryset(self):  # type: ignore[no-untyped-def]
             organisation_id=self.kwargs.get("organisation_pk"), revoked=False
         )
 
+    def get_authenticators(self) -> list[BaseAuthentication]:
+        # API Keys should not be able to create API Keys
+        return [
+            authenticator
+            for authenticator in super().get_authenticators()
+            if not isinstance(authenticator, MasterAPIKeyAuthentication)
+        ]
+
     def perform_create(self, serializer):  # type: ignore[no-untyped-def]
-        serializer.save(organisation_id=self.kwargs.get("organisation_pk"))
+        serializer.save(
+            organisation_id=self.kwargs.get("organisation_pk"),
+            created_by=self.request.user,
+        )
diff --git a/api/tests/integration/api_keys/test_viewset.py b/api/tests/integration/api_keys/test_viewset.py
index 529232ee3d74..f1c8dc3a6d89 100644
--- a/api/tests/integration/api_keys/test_viewset.py
+++ b/api/tests/integration/api_keys/test_viewset.py
@@ -3,11 +3,12 @@
 from rest_framework.test import APIClient
 
 from organisations.models import Organisation
+from users.models import FFAdminUser
 
 
-def test_create_master_api_key__valid_data__returns_key_in_response(  # type: ignore[no-untyped-def]
-    admin_client, organisation
-):
+def test_create_master_api_key__valid_data__returns_key_in_response(
+    admin_user: FFAdminUser, admin_client: APIClient, organisation: Organisation
+) -> None:
     # Given
     url = reverse(
         "api-v1:organisations:organisation-master-api-keys-list",
@@ -22,6 +23,7 @@ def test_create_master_api_key__valid_data__returns_key_in_response(  # type: ig
     assert response.status_code == status.HTTP_201_CREATED
     assert response.json()["key"] is not None
     assert response.json()["is_admin"] is True
+    assert response.json()["created_by"] == admin_user.id
 
 
 def test_create_master_api_key__non_admin_without_rbac__returns_400(  # type: ignore[no-untyped-def]
diff --git a/frontend/web/components/AdminAPIKeys.js b/frontend/web/components/AdminAPIKeys.js
index f66194921c17..38f7e4ae104e 100644
--- a/frontend/web/components/AdminAPIKeys.js
+++ b/frontend/web/components/AdminAPIKeys.js
@@ -2,6 +2,9 @@ import React, { PureComponent } from 'react'
 import { close as closeIcon } from 'ionicons/icons'
 import { IonIcon } from '@ionic/react'
 import data from 'common/data/base/_data'
+import AppActions from 'common/dispatcher/app-actions'
+import OrganisationStore from 'common/stores/organisation-store'
+import getUserDisplayName from 'common/utils/getUserDisplayName'
 import Token from './Token'
 import JSONReference from './JSONReference'
 import Button from './base/forms/Button'
@@ -339,12 +342,23 @@ export default class AdminAPIKeys extends PureComponent {
 
   componentDidMount() {
     this.fetch()
+    AppActions.getOrganisation(this.props.organisationId)
+    OrganisationStore.on('change', this.onOrganisationChange)
+  }
+
+  componentWillUnmount() {
+    OrganisationStore.off('change', this.onOrganisationChange)
+  }
+
+  onOrganisationChange = () => {
+    this.forceUpdate()
   }
 
   componentDidUpdate() {
     if (this.props.organisationId === this.state.organisationId) return
 
     this.fetch()
+    AppActions.getOrganisation(this.props.organisationId)
     this.setState({ organisationId: this.props.organisationId })
   }
 
@@ -444,12 +458,12 @@ export default class AdminAPIKeys extends PureComponent {
             {`Create API Key`}
           </Button>
         </Column>
-        {this.state.isLoading && (
+        {(this.state.isLoading || !OrganisationStore.model?.users) && (
           <div className='text-center'>
             <Loader />
           </div>
         )}
-        {!!apiKeys && !!apiKeys.length && (
+        {!!apiKeys && !!apiKeys.length && !!OrganisationStore.model?.users && (
           <PanelSearch
             className='no-pad'
             items={apiKeys}
@@ -457,6 +471,17 @@ export default class AdminAPIKeys extends PureComponent {
               <Row className='table-header'>
                 <Flex className='table-column px-3'>API Keys</Flex>
                 <Flex className='table-column'>Created</Flex>
+                {Utils.getFlagsmithHasFeature(
+                  'organisation_api_keys_created_by',
+                ) && (
+                  <Flex className='table-column'>
+                    <Tooltip title='Created by' place='right'>
+                      This field may be blank if the key was created before this
+                      information was tracked, or if the user has since left the
+                      organisation.
+                    </Tooltip>
+                  </Flex>
+                )}
                 <Flex className='table-column'>Is Admin</Flex>
                 <Flex className='table-column'>Active</Flex>
                 <div
@@ -467,59 +492,71 @@ export default class AdminAPIKeys extends PureComponent {
                 </div>
               </Row>
             }
-            renderRow={(v) =>
-              !v.revoked && (
-                <Row
-                  className='list-item'
-                  key={v.id}
-                  onClick={() => this.editAPIKey(v.name, v.id, v.prefix)}
-                >
-                  <Flex className='table-column px-3'>
-                    <div className='font-weight-medium mb-1'>{v.name}</div>
-                    <div className='list-item-subtitle'>
-                      <div>{v.prefix}*****************</div>
-                    </div>
-                  </Flex>
-                  <Flex className='table-column fs-small lh-sm'>
-                    {moment(v.created).format('Do MMM YYYY HH:mma')}
-                  </Flex>
-                  <Flex className='table-column fs-small lh-sm'>
-                    <Switch checked={v.is_admin} disabled={true} />
-                  </Flex>
-                  <Flex className='table-column fs-small lh-sm'>
-                    {v.has_expired ? (
-                      <div className='ml-1'>
-                        <Tooltip title={<Icon name='close-circle' />}>
-                          {'This API key has expired'}
-                        </Tooltip>
+            renderRow={(v) => {
+              const orgUsers = OrganisationStore.model?.users
+              const createdByUser =
+                v.created_by && orgUsers?.find((u) => u.id === v.created_by)
+              return (
+                !v.revoked && (
+                  <Row
+                    className='list-item'
+                    key={v.id}
+                    onClick={() => this.editAPIKey(v.name, v.id, v.prefix)}
+                  >
+                    <Flex className='table-column px-3'>
+                      <div className='font-weight-medium mb-1'>{v.name}</div>
+                      <div className='list-item-subtitle'>
+                        <div>{v.prefix}*****************</div>
                       </div>
-                    ) : (
-                      <span className='ml-1'>
-                        <Icon
-                          name='checkmark-circle'
-                          fill='#27AB95'
-                          width={28}
-                        />
-                      </span>
+                    </Flex>
+                    <Flex className='table-column fs-small lh-sm'>
+                      {moment(v.created).format('Do MMM YYYY HH:mma')}
+                    </Flex>
+                    {Utils.getFlagsmithHasFeature(
+                      'organisation_api_keys_created_by',
+                    ) && (
+                      <Flex className='table-column fs-small lh-sm'>
+                        {getUserDisplayName(createdByUser, '-')}
+                      </Flex>
                     )}
-                  </Flex>
-                  <div
-                    className='table-column  text-center'
-                    style={{ width: '80px' }}
-                  >
-                    <Button
-                      onClick={(e) => {
-                        e.stopPropagation()
-                        this.remove(v)
-                      }}
-                      className='btn btn-with-icon'
+                    <Flex className='table-column fs-small lh-sm'>
+                      <Switch checked={v.is_admin} disabled={true} />
+                    </Flex>
+                    <Flex className='table-column fs-small lh-sm'>
+                      {v.has_expired ? (
+                        <div className='ml-1'>
+                          <Tooltip title={<Icon name='close-circle' />}>
+                            {'This API key has expired'}
+                          </Tooltip>
+                        </div>
+                      ) : (
+                        <span className='ml-1'>
+                          <Icon
+                            name='checkmark-circle'
+                            fill='#27AB95'
+                            width={28}
+                          />
+                        </span>
+                      )}
+                    </Flex>
+                    <div
+                      className='table-column  text-center'
+                      style={{ width: '80px' }}
                     >
-                      <Icon name='trash-2' width={20} fill='#656D7B' />
-                    </Button>
-                  </div>
-                </Row>
+                      <Button
+                        onClick={(e) => {
+                          e.stopPropagation()
+                          this.remove(v)
+                        }}
+                        className='btn btn-with-icon'
+                      >
+                        <Icon name='trash-2' width={20} fill='#656D7B' />
+                      </Button>
+                    </div>
+                  </Row>
+                )
               )
-            }
+            }}
           />
         )}
       </div>