1. On the Shopee Mobile App
Go to the Me tab.
Your Shopee username will be displayed on the top banner.

2. On the Shopee Webpage
Log in to your account.
Your Shopee username will appear in the top right corner of the page.

Yes, but you can only change your Shopee username once.
Here’s how to do it on the Shopee App:
Open the Me tab
Tap the Settings ⚙ icon
Select the Account & Security tab
Tap on Username
Enter your desired username
Click Save
If your username was automatically generated when you signed up (e.g., random letters and numbers), this does not count as your one-time change. You can still update your username later.
If you created your own username during sign-up, that counts as your one allowed username change. After updating, you cannot change it again.