1) Launch the Yahoo Mail app on your device. 2) Tap on the Menu icon located at the top-left corner of the screen. 3) Tap on Settings. 4) Tap on Change Name. 5) Enter your new name and then tap on OK.
Video – How To Change Display Name On Yahoo Mail App
So there you have it! You now know how to change your display name on the Yahoo Mail app. If you have any questions or run into any problems, be sure to let us know in the comments.