How do I delete a user from an account?
You can delete a user from your account. This process cannot be undone and will remove the user's data (including grades and ePortfolios) from all courses and groups.
Note: If your account manages user information through a student information system (SIS), changes will also have to be made in the SIS. Any changes made in Canvas will not be passed back to the SIS.
Open Account

In Global Navigation, click the Admin link [1], then click the name of the account [2].