Open Minecraft and check the profile name shown on the main menu
Check the username in the top-right corner of the Minecraft Launcher
Sign in to your Microsoft account and view your Minecraft profile details
Open the Xbox app or Xbox website and check your gamertag linked to Minecraft
Look at your in-game name in a multiplayer server or world
Ask a friend to check the name displayed on their friends list
Check your account purchase or confirmation email for the linked username
Visit the official Minecraft website and sign in to view your account info