diff --git a/docs/settings/fleet-settings.asciidoc b/docs/settings/fleet-settings.asciidoc
index 468cef7ad90f9..6d3bb247e6ed4 100644
--- a/docs/settings/fleet-settings.asciidoc
+++ b/docs/settings/fleet-settings.asciidoc
@@ -269,6 +269,8 @@ List of {fleet-server} hosts that are configured when the {fleet} app starts.
 =====
   `is_default`:::
     Whether or not this host should be the default to use for {fleet-server}.
+  `is_internal`:::
+    If `true` the host will not appear in the UI, and can only be managed via `kibana.yml` or the Fleet API.
   `proxy_id`::: 
     Unique ID of the proxy to access the {fleet-server} host.
 =====
diff --git a/x-pack/plugins/fleet/common/openapi/bundled.json b/x-pack/plugins/fleet/common/openapi/bundled.json
index c04f0da6a3d85..008e1d1f0ba37 100644
--- a/x-pack/plugins/fleet/common/openapi/bundled.json
+++ b/x-pack/plugins/fleet/common/openapi/bundled.json
@@ -5083,6 +5083,9 @@
                   "is_default": {
                     "type": "boolean"
                   },
+                  "is_internal": {
+                    "type": "boolean"
+                  },
                   "host_urls": {
                     "type": "array",
                     "items": {
@@ -5195,6 +5198,9 @@
                   "is_default": {
                     "type": "boolean"
                   },
+                  "is_internal": {
+                    "type": "boolean"
+                  },
                   "host_urls": {
                     "type": "array",
                     "items": {
@@ -8904,6 +8910,9 @@
           "is_default": {
             "type": "boolean"
           },
+          "is_internal": {
+            "type": "boolean"
+          },
           "is_preconfigured": {
             "type": "boolean"
           },
diff --git a/x-pack/plugins/fleet/common/openapi/bundled.yaml b/x-pack/plugins/fleet/common/openapi/bundled.yaml
index ab486bb2fb8c2..849c22b47069a 100644
--- a/x-pack/plugins/fleet/common/openapi/bundled.yaml
+++ b/x-pack/plugins/fleet/common/openapi/bundled.yaml
@@ -3171,6 +3171,8 @@ paths:
                   type: string
                 is_default:
                   type: boolean
+                is_internal:
+                  type: boolean
                 host_urls:
                   type: array
                   items:
@@ -3241,6 +3243,8 @@ paths:
                   type: string
                 is_default:
                   type: boolean
+                is_internal:
+                  type: boolean
                 host_urls:
                   type: array
                   items:
@@ -5762,6 +5766,8 @@ components:
           type: string
         is_default:
           type: boolean
+        is_internal:
+          type: boolean
         is_preconfigured:
           type: boolean
         host_urls:
diff --git a/x-pack/plugins/fleet/common/openapi/components/schemas/fleet_server_host.yaml b/x-pack/plugins/fleet/common/openapi/components/schemas/fleet_server_host.yaml
index 133bc7fcce13c..2bb08f3acc2a3 100644
--- a/x-pack/plugins/fleet/common/openapi/components/schemas/fleet_server_host.yaml
+++ b/x-pack/plugins/fleet/common/openapi/components/schemas/fleet_server_host.yaml
@@ -7,6 +7,8 @@ properties:
     type: string
   is_default:
     type: boolean
+  is_internal:
+    type: boolean
   is_preconfigured:
     type: boolean
   host_urls:
diff --git a/x-pack/plugins/fleet/common/openapi/paths/fleet_server_hosts.yaml b/x-pack/plugins/fleet/common/openapi/paths/fleet_server_hosts.yaml
index d7668f3683b7b..987f61cd7619b 100644
--- a/x-pack/plugins/fleet/common/openapi/paths/fleet_server_hosts.yaml
+++ b/x-pack/plugins/fleet/common/openapi/paths/fleet_server_hosts.yaml
@@ -51,6 +51,8 @@ post:
               type: string
             is_default:
               type: boolean
+            is_internal:
+              type: boolean
             host_urls:
               type: array
               items:
diff --git a/x-pack/plugins/fleet/common/openapi/paths/fleet_server_hosts@{item_id}.yaml b/x-pack/plugins/fleet/common/openapi/paths/fleet_server_hosts@{item_id}.yaml
index d46a8b86fb7f6..21d5342d18a5e 100644
--- a/x-pack/plugins/fleet/common/openapi/paths/fleet_server_hosts@{item_id}.yaml
+++ b/x-pack/plugins/fleet/common/openapi/paths/fleet_server_hosts@{item_id}.yaml
@@ -59,6 +59,8 @@ put:
               type: string
             is_default:
               type: boolean
+            is_internal:
+              type: boolean
             host_urls:
               type: array
               items:
diff --git a/x-pack/plugins/fleet/common/types/models/fleet_server_policy_config.ts b/x-pack/plugins/fleet/common/types/models/fleet_server_policy_config.ts
index 5609853a4ad2e..1e634df2b766d 100644
--- a/x-pack/plugins/fleet/common/types/models/fleet_server_policy_config.ts
+++ b/x-pack/plugins/fleet/common/types/models/fleet_server_policy_config.ts
@@ -11,6 +11,7 @@ export interface NewFleetServerHost {
   host_urls: string[];
   is_default: boolean;
   is_preconfigured: boolean;
+  is_internal?: boolean;
   proxy_id?: string | null;
 }
 
diff --git a/x-pack/plugins/fleet/common/types/rest_spec/fleet_server_hosts.ts b/x-pack/plugins/fleet/common/types/rest_spec/fleet_server_hosts.ts
index 4a334c7e71b62..f07e96a0b927b 100644
--- a/x-pack/plugins/fleet/common/types/rest_spec/fleet_server_hosts.ts
+++ b/x-pack/plugins/fleet/common/types/rest_spec/fleet_server_hosts.ts
@@ -19,6 +19,7 @@ export interface PutFleetServerHostsRequest {
     name?: string;
     host_urls?: string[];
     is_default?: boolean;
+    is_internal?: boolean;
     proxy_id?: string | null;
   };
 }
@@ -29,6 +30,7 @@ export interface PostFleetServerHostsRequest {
     name?: string;
     host_urls?: string[];
     is_default?: boolean;
+    is_internal?: boolean;
     proxy_id?: string | null;
   };
 }
diff --git a/x-pack/plugins/fleet/public/applications/fleet/sections/agent_policy/components/agent_policy_advanced_fields/hooks.tsx b/x-pack/plugins/fleet/public/applications/fleet/sections/agent_policy/components/agent_policy_advanced_fields/hooks.tsx
index 5b36fd831bb65..7409f75a593dd 100644
--- a/x-pack/plugins/fleet/public/applications/fleet/sections/agent_policy/components/agent_policy_advanced_fields/hooks.tsx
+++ b/x-pack/plugins/fleet/public/applications/fleet/sections/agent_policy/components/agent_policy_advanced_fields/hooks.tsx
@@ -224,9 +224,12 @@ export function useFleetServerHostsOptions(agentPolicy: Partial<NewAgentPolicy |
       ...fleetServerHostsRequest.data.items
         .filter((item) => !item.is_default)
         .map((item) => {
+          const isInternalFleetServerHost = !!item.is_internal;
+
           return {
             value: item.id,
             inputDisplay: item.name,
+            disabled: isInternalFleetServerHost,
           };
         }),
     ];
diff --git a/x-pack/plugins/fleet/public/applications/fleet/sections/settings/index.tsx b/x-pack/plugins/fleet/public/applications/fleet/sections/settings/index.tsx
index 889635a9df71c..93f541d2ffd8b 100644
--- a/x-pack/plugins/fleet/public/applications/fleet/sections/settings/index.tsx
+++ b/x-pack/plugins/fleet/public/applications/fleet/sections/settings/index.tsx
@@ -50,6 +50,7 @@ export const SettingsApp = withConfirmModalProvider(() => {
 
   const { outputs, fleetServerHosts, downloadSources, proxies } = useSettingsAppData();
   const outputItems = outputs.data?.items.filter((item) => !item.is_internal);
+  const fleetServerHostsItems = fleetServerHosts.data?.items.filter((item) => !item.is_internal);
 
   const { deleteOutput } = useDeleteOutput(outputs.resendRequest);
   const { deleteDownloadSource } = useDeleteDownloadSource(downloadSources.resendRequest);
@@ -81,7 +82,7 @@ export const SettingsApp = withConfirmModalProvider(() => {
     (outputs.isLoading && outputs.isInitialRequest) ||
     !outputItems ||
     (fleetServerHosts.isLoading && fleetServerHosts.isInitialRequest) ||
-    !fleetServerHosts.data?.items ||
+    !fleetServerHostsItems ||
     (downloadSources.isLoading && downloadSources.isInitialRequest) ||
     !downloadSources.data?.items ||
     (proxies.isLoading && proxies.isInitialRequest) ||
@@ -99,7 +100,7 @@ export const SettingsApp = withConfirmModalProvider(() => {
       <Routes>
         <Route path={FLEET_ROUTING_PATHS.settings_edit_fleet_server_hosts}>
           {(route: { match: { params: { itemId: string } } }) => {
-            const fleetServerHost = fleetServerHosts.data?.items.find(
+            const fleetServerHost = fleetServerHostsItems.find(
               (o) => route.match.params.itemId === o.id
             );
             if (!fleetServerHost) {
@@ -198,7 +199,7 @@ export const SettingsApp = withConfirmModalProvider(() => {
         deleteFleetProxy={deleteFleetProxy}
         proxies={proxies.data.items}
         outputs={outputItems}
-        fleetServerHosts={fleetServerHosts.data.items}
+        fleetServerHosts={fleetServerHostsItems}
         deleteOutput={deleteOutput}
         deleteFleetServerHost={deleteFleetServerHost}
         downloadSources={downloadSources.data.items}
diff --git a/x-pack/plugins/fleet/server/saved_objects/index.ts b/x-pack/plugins/fleet/server/saved_objects/index.ts
index a1d6e61c0fa66..b69b17e6e59b0 100644
--- a/x-pack/plugins/fleet/server/saved_objects/index.ts
+++ b/x-pack/plugins/fleet/server/saved_objects/index.ts
@@ -626,6 +626,7 @@ const getSavedObjectTypes = (): { [key: string]: SavedObjectsType } => ({
       properties: {
         name: { type: 'keyword' },
         is_default: { type: 'boolean' },
+        is_internal: { type: 'boolean', index: false },
         host_urls: { type: 'keyword', index: false },
         is_preconfigured: { type: 'boolean' },
         proxy_id: { type: 'keyword' },
diff --git a/x-pack/plugins/fleet/server/services/preconfiguration/fleet_server_host.ts b/x-pack/plugins/fleet/server/services/preconfiguration/fleet_server_host.ts
index f622b1115e16e..5959cc25288ce 100644
--- a/x-pack/plugins/fleet/server/services/preconfiguration/fleet_server_host.ts
+++ b/x-pack/plugins/fleet/server/services/preconfiguration/fleet_server_host.ts
@@ -110,6 +110,7 @@ export async function createOrUpdatePreconfiguredFleetServerHosts(
           (!existingHost.is_preconfigured ||
             existingHost.is_default !== preconfiguredFleetServerHost.is_default ||
             existingHost.name !== preconfiguredFleetServerHost.name ||
+            isDifferent(existingHost.is_internal, preconfiguredFleetServerHost.is_internal) ||
             isDifferent(
               existingHost.host_urls.map(normalizeHostsForAgents),
               preconfiguredFleetServerHost.host_urls.map(normalizeHostsForAgents)
diff --git a/x-pack/plugins/fleet/server/types/models/preconfiguration.ts b/x-pack/plugins/fleet/server/types/models/preconfiguration.ts
index 7572da134bd99..e814616268d3d 100644
--- a/x-pack/plugins/fleet/server/types/models/preconfiguration.ts
+++ b/x-pack/plugins/fleet/server/types/models/preconfiguration.ts
@@ -103,6 +103,7 @@ export const PreconfiguredFleetServerHostsSchema = schema.arrayOf(
     id: schema.string(),
     name: schema.string(),
     is_default: schema.boolean({ defaultValue: false }),
+    is_internal: schema.maybe(schema.boolean()),
     host_urls: schema.arrayOf(schema.string(), { minSize: 1 }),
     proxy_id: schema.nullable(schema.string()),
   }),
diff --git a/x-pack/plugins/fleet/server/types/rest_spec/fleet_server_policy_config.ts b/x-pack/plugins/fleet/server/types/rest_spec/fleet_server_policy_config.ts
index bf112a7d9abfe..d3f2f36a1624f 100644
--- a/x-pack/plugins/fleet/server/types/rest_spec/fleet_server_policy_config.ts
+++ b/x-pack/plugins/fleet/server/types/rest_spec/fleet_server_policy_config.ts
@@ -13,6 +13,7 @@ export const PostFleetServerHostRequestSchema = {
     name: schema.string(),
     host_urls: schema.arrayOf(schema.string(), { minSize: 1 }),
     is_default: schema.boolean({ defaultValue: false }),
+    is_internal: schema.maybe(schema.boolean()),
     proxy_id: schema.nullable(schema.string()),
   }),
 };
@@ -27,6 +28,7 @@ export const PutFleetServerHostRequestSchema = {
     name: schema.maybe(schema.string()),
     host_urls: schema.maybe(schema.arrayOf(schema.string(), { minSize: 1 })),
     is_default: schema.maybe(schema.boolean({ defaultValue: false })),
+    is_internal: schema.maybe(schema.boolean()),
     proxy_id: schema.nullable(schema.string()),
   }),
 };
diff --git a/x-pack/plugins/fleet/server/types/so_attributes.ts b/x-pack/plugins/fleet/server/types/so_attributes.ts
index 09b49440fe3c3..05b2cc1b05bae 100644
--- a/x-pack/plugins/fleet/server/types/so_attributes.ts
+++ b/x-pack/plugins/fleet/server/types/so_attributes.ts
@@ -104,6 +104,7 @@ export interface FleetServerHostSOAttributes {
   host_urls: string[];
   is_default: boolean;
   is_preconfigured: boolean;
+  is_internal?: boolean;
   proxy_id?: string | null;
 }