Thread:Sannse/@comment-28883948-20161205160915/@comment-8-20161205170508

Yes, but you can only do it once. So be very sure that you change to a name you will want to use forever.

You should also be very sure you have spelled t it right. For example, it should be "seagull", not "seegull"

To make the change, just go to Special:Contact/rename-account and put the details in there.