Seems like nobody knows it, but it's pretty easy. 1 - Open Origin and click Origin > EA Account and Billing... A webpage will be opened, you should be automatically logged in and see your account details. 2 - Next to "Basic Information" click on "Edit". Some users such as myself will need to confirm their identity. Another page will pop up, this is where you can change your name etc. 3 - Replace your old name with a new one and click somewhere in the page to see if the name is available. Once nothing shows up such as here you simply just click "SAVE" and it'll be immediately changed. *There's an unlimited amount of nickname changes you can make. *Spaces can not be used in the name, neither can special symbols.