diff --git a/packages/types/src/lib/context/context.ts b/packages/types/src/lib/context/context.ts
index efa9b077e..3cea2e66b 100644
--- a/packages/types/src/lib/context/context.ts
+++ b/packages/types/src/lib/context/context.ts
@@ -1,5 +1,6 @@
 import { Cookies } from './cookies.js'
 import { Geo } from './geo.js'
+import { NetlifyUser } from './netlify-user.js'
 import { Server } from './server.js'
 import { Site } from './site.js'
 
@@ -43,5 +44,11 @@ export interface Context {
   server: Server
   site: Site
   url: URL
+
+  /**
+   * The Netlify user who passed SSO site protection for this request.
+   */
+  user?: NetlifyUser
+
   waitUntil: (promise: Promise<unknown>) => void
 }
diff --git a/packages/types/src/lib/context/netlify-user.ts b/packages/types/src/lib/context/netlify-user.ts
new file mode 100644
index 000000000..a8b49a51d
--- /dev/null
+++ b/packages/types/src/lib/context/netlify-user.ts
@@ -0,0 +1,8 @@
+export interface NetlifyUser {
+  /** Netlify user ID of the signed-in visitor. */
+  id: string
+  /** Email address on the visitor's Netlify account. */
+  email?: string
+  /** When the visitor's access to this site expires. */
+  expiresAt: Date
+}
diff --git a/packages/types/src/main.ts b/packages/types/src/main.ts
index 795b2a005..e6514b530 100644
--- a/packages/types/src/main.ts
+++ b/packages/types/src/main.ts
@@ -34,5 +34,6 @@ export type { FormSubmittedEvent, FormSubmittedHandler } from './lib/events/subm
 export type { EnvironmentVariables } from './lib/environment-variables.js'
 export type { FunctionRegion } from './lib/function-regions.js'
 export type { NetlifyGlobal } from './lib/globals.js'
+export type { NetlifyUser } from './lib/context/netlify-user.js'
 export type { ServerRegion } from './lib/server-regions.js'
 export type { Site } from './lib/context/site.js'