Changing a username in WordPress cannot be done within the WordPress interfaces, but it is still easy to do … providing you have access to the WordPress database.
Let’s start …
- Access the cPanel for your web site; and, locate the phpMyAdmin applet, it is generally found in the Databases section.
- Start phpMyAdmin.
- Locate and access your WordPress database.
- Find the wp_users table
Next, click on the left most icon to browse the users in the wp_users table.
Then, click on the “pencil” icon beside the user you wish to edit. This will display the screen we will be using to change the username.
Now, edit the user_login (and the user_nicename) to your new login username. Click on the “GO” button in the bottom right corner (not shown in the image) of the edit screen. Voila!
You can now change the username in a WordPress self-hosted installation. Well Done!
PPS: Remember to make back-ups! Always!