How to change publisher name in Google Play

Google often changes its design. So for now we need to go to Google Play Console main page, then select in the left pane "Developer Page". There, we can change the developer name.

In the Developer Console, go to Settings, and change the 'Developer Name'.

Note that this name is the same for all of your apps. If you want to keep your name for other apps, you need a separate developer account and file for an app transfer.