Family name in Black Desert is the name displayed to other players. If you want to change yours for any reason, this guide will help you.
How to change surname BDO
Family name is more or less your account name in Black Desert. It persists across all your characters and servers. It's what other players see during the game. If for some reason you want to change it, this guide will tell you exactly what to do.
Changing your last name in Black Desert is a fairly simple process. However, the only current way to do that is a paid method. To do so, you must purchase a name change voucher from the Pearl Shop. Unfortunately, there is no free method at this time.
To get a name change coupon, you need to open the in-game gem shop and go to the Etc section. Here you will see a surname change coupon listed for 1200 gems. Once you purchase it, you can find it in your Pearl inventory.