Yes! You can purchase a Name Change Coupon from the Supply Depot in order to change the name of your character. The name has to be available for use and follow the general character name rules.
If you are deleting a character in order to free up a name that you would like to use, you will have to contact Nexon Player Support to assist you in freeing up your deleted characters name.
Please make sure that the character has been deleted first, which takes about 24 hours. It would also help us greatly if you could include in the title, "Name Release".