My username on candy crush comes up as me

Maria_Ilsley

How do I change my name on candy crush soda

Elsa

Hi Maria, where are you playing the game?  Facebook or the Kingdom?  I think it would have to do with the settings of either one.  If it's connected with the Kingdom then you would have to go to the King.com website, click on a game and then log in.  Once in, click on the settings and from there you should be able to update your profile information.  If it's through Facebook then that would be connected with your Facebook account and you would have to go into the settings there.