Aleksandar "Kristijan" Golubović (Serbian Cyrillic: Александар-Кристијан Голубовић; born 30 November 1969) is a Serbian organized criminal and Mixed martial artist. He was featured among several other Belgrade gangsters in the 1996 documentary about Serbia's underworld called Vidimo se u čitulji. Kristijan is one of only a few individuals, out of dozens featured in the film, still alive today.
After spending four and a half years in prison in Požarevac, he was released on January 9, 2009. As of January 2010, he is in police custody again after getting arrested on a charge that he was involved in narcotics trade.
Born to Srboljub "Kića" and Milanka "Mima" Golubović in a family of gastarbeiters living in Munich, Kristijan did not meet his father until grade school since he was serving a long-term prison sentence for taking part in a robbery with deadly outcome. His mother was a JAT stewardess. His father was imprisoned in Goli Otok prison. His godfather (kum) was Ljuba Zemunac, a notable mafia boss.
He became friends with Legija in 1982 when they together worked as bouncers at night clubs. In the mid 1980s he befriended Joca Amsterdam.