You can change the name associated with your Airtable account from the account page (Airtable.com/account, accessed from a laptop or desktop).
The first name and last name that you entered during the signup process is the name your fellow collaborators can use to @message you or add you as a collaborator in a collaborator field. To change your name, click the Edit name option next to your name.
This will bring up a dialog where you can edit your new first and last name.
When you're ready, click the Save name button.