Mark Wahlberg's twin brother from another mother ... somewhere in Asia -- doesn't understand why people keep confusing him for the uhh ... more ethnic version of Marky Mark.
Turns out the guy now known all over the Internet as the Asian Mark Wahlberg ... has been hearing this for years. He also happens to be friends with a few TMZ staffers, and was on TMZ Live Thursday.
By the way, his real name is Steven Tran. Check out his explanation for how he went viral.
Asian Brad Pitt, beware ... Tran's coming for ya!.