Being a SharePoint developer we all know that The User Information List stores information about a user by having some metadata set up for the user. Some examples are Picture, Email, DisplayName, LoginName etc. ) This list is only visible to and accessible by administrators. However today we faced very weird issue that not able to access this hidden list. we can browse it under " /_catalogs/users" but we were not able to query it Problem : We were not able to query the User Information List in SharePoint 2013 On-Premise. Tried following stuffs : 1. http://your-site-name/_vti_bin/ListData.svc/UserInformationList 2. http://your-site-name/ /_api/web/lists/GetByTitle(‘ User Information List ') 3. In PowerShell - $SITE = GET-SPSITE "HTTPS://your-site-name" $WEB = $SITE.ROOTWEB $LIST = $WEB.LISTS["USER INFORMATION LIST"] All the above was giving the 404 error, List was not exist under the $web.Lists - which was very weird.