With the upcoming Overwatch release, Blizzard has allowed player to change their Battle.net tag / name one time!
This will allow players to change their account names through certain games too, like Hearthstone, where a change in your Battle.net tag will rename your in game Hearthstone account.
Blizzard has stated that this decision follows the continuous and huge amount of people asking for a change in their battle.net tag.
Link to the picture above once you’ve logged in Here
The picture above show a red circle around “Edit”, click edit and you will be redicredted towards a page which allows you to change your Battle.net Tag. As you can see in the yellow sig above, you can only change it once, so choose wisely!
If you want to change your battle.net tag now, do it quickly before they remove the feature!
View the original Blizzard post Here