How to Change Your Name in Undertale?
You have to edit the file named 'undertale.ini' in the game’s directory! Open it with a text editor like Notepad, and just change the name under 'Name' to whatever you want!
Play Games.Earn points.Get gift cards!

Playback Rewards
(13.7k)
500k players and counting...
More Answers
The only way I know is through the in-game reset option. Go to the title screen, select 'Reset,' and you'll get prompted to enter a new name.
The best way is by starting a new game. At the beginning, the game asks for the fallen human's name. Easy peasy!
You could always just hack the game's save files, but fair warning: that might break your game. Debugging skills required!
The game locks certain names. Don’t be surprised if 'Sans' or 'Flowey' doesn’t work. Toby Fox, you sly dog!
👀 If you like Undertale...
The brands referenced on this page are not sponsors of the rewards or otherwise affiliated with this company. The logos and other identifying marks attached are trademarks of and owned by each represented company and/or its affiliates. Please visit each company's website for additional terms and conditions.
People also want to know
Add an Answer