diff --git a/apps/labrinth/migrations/20260630120000_shared-instance-invite-notification.sql b/apps/labrinth/migrations/20260630120000_shared-instance-invite-notification.sql
new file mode 100644
index 0000000000..3a4f777508
--- /dev/null
+++ b/apps/labrinth/migrations/20260630120000_shared-instance-invite-notification.sql
@@ -0,0 +1,6 @@
+INSERT INTO notifications_types
+	(name, delivery_priority, expose_in_user_preferences, expose_in_site_notifications)
+VALUES ('shared_instance_invite', 1, FALSE, TRUE);
+
+INSERT INTO users_notifications_preferences (user_id, channel, notification_type, enabled)
+VALUES (NULL, 'email', 'shared_instance_invite', FALSE);
diff --git a/apps/labrinth/src/models/v2/notifications.rs b/apps/labrinth/src/models/v2/notifications.rs
index e0b632ca21..3e60cdbe89 100644
--- a/apps/labrinth/src/models/v2/notifications.rs
+++ b/apps/labrinth/src/models/v2/notifications.rs
@@ -73,6 +73,10 @@ pub enum LegacyNotificationBody {
         invited_by: UserId,
         role: String,
     },
+    SharedInstanceInvite {
+        shared_instance_id: String,
+        shared_instance_name: String,
+    },
     StatusChange {
         project_id: ProjectId,
         old_status: ProjectStatus,
@@ -177,6 +181,9 @@ impl LegacyNotification {
             NotificationBody::ServerInvite { .. } => {
                 Some("server_invite".to_string())
             }
+            NotificationBody::SharedInstanceInvite { .. } => {
+                Some("shared_instance_invite".to_string())
+            }
             NotificationBody::StatusChange { .. } => {
                 Some("status_change".to_string())
             }
@@ -294,6 +301,13 @@ impl LegacyNotification {
                 invited_by,
                 role,
             },
+            NotificationBody::SharedInstanceInvite {
+                shared_instance_id,
+                shared_instance_name,
+            } => LegacyNotificationBody::SharedInstanceInvite {
+                shared_instance_id,
+                shared_instance_name,
+            },
             NotificationBody::StatusChange {
                 project_id,
                 old_status,
diff --git a/apps/labrinth/src/models/v3/notifications.rs b/apps/labrinth/src/models/v3/notifications.rs
index d8ea3d4f71..ebef09548f 100644
--- a/apps/labrinth/src/models/v3/notifications.rs
+++ b/apps/labrinth/src/models/v3/notifications.rs
@@ -36,6 +36,7 @@ pub enum NotificationType {
     TeamInvite,
     OrganizationInvite,
     ServerInvite,
+    SharedInstanceInvite,
     StatusChange,
     ModeratorMessage,
     LegacyMarkdown,
@@ -71,6 +72,7 @@ impl NotificationType {
             NotificationType::TeamInvite => "team_invite",
             NotificationType::OrganizationInvite => "organization_invite",
             NotificationType::ServerInvite => "server_invite",
+            NotificationType::SharedInstanceInvite => "shared_instance_invite",
             NotificationType::StatusChange => "status_change",
             NotificationType::ModeratorMessage => "moderator_message",
             NotificationType::LegacyMarkdown => "legacy_markdown",
@@ -112,6 +114,7 @@ impl NotificationType {
             "team_invite" => NotificationType::TeamInvite,
             "organization_invite" => NotificationType::OrganizationInvite,
             "server_invite" => NotificationType::ServerInvite,
+            "shared_instance_invite" => NotificationType::SharedInstanceInvite,
             "status_change" => NotificationType::StatusChange,
             "moderator_message" => NotificationType::ModeratorMessage,
             "legacy_markdown" => NotificationType::LegacyMarkdown,
@@ -173,6 +176,10 @@ pub enum NotificationBody {
         invited_by: UserId,
         role: String,
     },
+    SharedInstanceInvite {
+        shared_instance_id: String,
+        shared_instance_name: String,
+    },
     StatusChange {
         project_id: ProjectId,
         old_status: ProjectStatus,
@@ -288,6 +295,9 @@ impl NotificationBody {
             NotificationBody::ServerInvite { .. } => {
                 NotificationType::ServerInvite
             }
+            NotificationBody::SharedInstanceInvite { .. } => {
+                NotificationType::SharedInstanceInvite
+            }
             NotificationBody::StatusChange { .. } => {
                 NotificationType::StatusChange
             }
@@ -470,6 +480,32 @@ impl From<DBNotification> for Notification {
                         },
                     ],
                 ),
+                NotificationBody::SharedInstanceInvite {
+                    shared_instance_name,
+                    ..
+                } => (
+                    "You have been invited to a shared instance!".to_string(),
+                    format!(
+                        "An invite has been sent for you to join {shared_instance_name}"
+                    ),
+                    "#".to_string(),
+                    vec![
+                        NotificationAction {
+                            name: "Accept".to_string(),
+                            action_route: (
+                                "POST".to_string(),
+                                String::new(),
+                            ),
+                        },
+                        NotificationAction {
+                            name: "Deny".to_string(),
+                            action_route: (
+                                "POST".to_string(),
+                                String::new(),
+                            ),
+                        },
+                    ],
+                ),
                 NotificationBody::StatusChange {
                     old_status,
                     new_status,
diff --git a/apps/labrinth/src/queue/email/templates.rs b/apps/labrinth/src/queue/email/templates.rs
index a1fd487d29..c5772a413f 100644
--- a/apps/labrinth/src/queue/email/templates.rs
+++ b/apps/labrinth/src/queue/email/templates.rs
@@ -772,6 +772,7 @@ async fn collect_template_variables(
         }
 
         NotificationBody::ProjectUpdate { .. }
+        | NotificationBody::SharedInstanceInvite { .. }
         | NotificationBody::ModeratorMessage { .. }
         | NotificationBody::LegacyMarkdown { .. }
         | NotificationBody::Unknown => Ok(EmailTemplate::Static(map)),