Your Nintendo Switch username is how you appear to other players online and what shows up in your game library. Changing it is straightforward, but there are a few things to know first—like whether your friends will still see your old username in their contact lists, and what happens to your game saves and purchases. This section covers the actual steps to change your username and what to expect afterward.
You'll find answers to questions like how long a username change takes to go into effect across all your games, whether you can change it back if you regret it, and what restrictions Nintendo has on usernames. These articles also explain the difference between your Nintendo Network ID and your display name, since understanding that distinction makes the process clearer.