Yes, you can change your name in Clash of Clans. To do so, your Town Hall must be level 5 or higher. This unlocks the name change feature. Start by opening the Clash of Clans app and going to the Settings. Within the Settings menu, tap on “More Settings”.
Next, select the “Change Name” option at the top. Enter your new desired username and confirm it by re-entering it exactly as before. To finalize the change, you will need to type “CONFIRM” in all caps.
Keep in mind, the first name change is free. However, subsequent changes will cost you an increasing amount of gems. If your current name is offensive, it might result in a ban or a forced name change by Supercell.
If you regret your current name and need help, you can contact Supercell support to request a name change. They can assist you further with your request.