| hook_username_alter | modules/system/system.api.php | Alter the username that is displayed for a user. |
| hook_user_cancel | modules/user/user.api.php | Act on user account cancellations. |
| hook_user_cancel_methods_alter | modules/user/user.api.php | Modify account cancellation methods. |
| hook_user_categories | modules/user/user.api.php | Retrieve a list of user setting or profile information categories. |
| hook_user_delete | modules/user/user.api.php | Respond to user deletion. |
| hook_user_insert | modules/user/user.api.php | A user account was created. |
| hook_user_load | modules/user/user.api.php | Act on user objects when loaded from the database. |
| hook_user_login | modules/user/user.api.php | The user just logged in. |
| hook_user_logout | modules/user/user.api.php | The user just logged out. |
| hook_user_operations | modules/user/user.api.php | Add mass user operations. |
| hook_user_presave | modules/user/user.api.php | A user account is about to be created or updated. |
| hook_user_role_delete | modules/user/user.api.php | Inform other modules that a user role has been deleted. |
| hook_user_role_insert | modules/user/user.api.php | Inform other modules that a user role has been added. |
| hook_user_role_presave | modules/user/user.api.php | Inform other modules that a user role is about to be saved. |
| hook_user_role_update | modules/user/user.api.php | Inform other modules that a user role has been updated. |
| hook_user_update | modules/user/user.api.php | A user account was updated. |
| hook_user_view | modules/user/user.api.php | The user's account information is being displayed. |
| hook_user_view_alter | modules/user/user.api.php | The user was built; the module may modify the structured content. |