diff --git a/CHANGELOG b/CHANGELOG
index 1c09111443a..75b05bf4152 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -12,6 +12,7 @@ v 8.6.0 (unreleased)
   - Memoize @group in Admin::GroupsController (Yatish Mehta)
   - Indicate how much an MR diverged from the target branch (Pierre de La Morinerie)
   - Strip leading and trailing spaces in URL validator (evuez)
+  - Add "last_sign_in_at" and "confirmed_at" to GET /users/* API endpoints for admins (evuez)
   - Return empty array instead of 404 when commit has no statuses in commit status API
   - Add support for cross-project label references
   - Update documentation to reflect Guest role not being enforced on internal projects
diff --git a/doc/api/users.md b/doc/api/users.md
index b7fc903825e..82c57a2fd43 100644
--- a/doc/api/users.md
+++ b/doc/api/users.md
@@ -151,6 +151,8 @@ Parameters:
   "name": "John Smith",
   "state": "active",
   "created_at": "2012-05-23T08:00:58Z",
+  "confirmed_at": "2012-05-23T08:00:58Z",
+  "last_sign_in_at": "2015-03-23T08:00:58Z",
   "bio": null,
   "skype": "",
   "linkedin": "",
diff --git a/lib/api/entities.rb b/lib/api/entities.rb
index b021db8fa5b..0779fb881a0 100644
--- a/lib/api/entities.rb
+++ b/lib/api/entities.rb
@@ -23,6 +23,8 @@ module API
     end
 
     class UserFull < User
+      expose :last_sign_in_at
+      expose :confirmed_at
       expose :email
       expose :theme_id, :color_scheme_id, :projects_limit, :current_sign_in_at
       expose :identities, using: Entities::Identity
diff --git a/spec/requests/api/users_spec.rb b/spec/requests/api/users_spec.rb
index b82c5c7685f..96e8c8c51f8 100644
--- a/spec/requests/api/users_spec.rb
+++ b/spec/requests/api/users_spec.rb
@@ -47,6 +47,8 @@ describe API::API, api: true  do
         expect(json_response.first.keys).to include 'identities'
         expect(json_response.first.keys).to include 'can_create_project'
         expect(json_response.first.keys).to include 'two_factor_enabled'
+        expect(json_response.first.keys).to include 'last_sign_in_at'
+        expect(json_response.first.keys).to include 'confirmed_at'
       end
     end
   end