Alexander Dimitrenko is a boxer. He was born on July 5, 1982 in Crimea, Ukraine. He began boxing at the age of 14 and at the age of 18 won the (2000) world junior boxing championship in the Unlimited weight division. He was immediately offered a deal by German promoter Klaus-Peter Kohl after his victory. Dimitrenko signed with Kohl's Universum promotion company and emigrated to Hamburg, Germany to begin his professional career.

He began his career on December 8, 2001 by scoring a 4th-round TKO against Marcus Johnson at the Arena Oberhausen in Oberhausen, Germany. On November 6, 2004, Dimitrenko faced the man who gave Wladimir Klitschko his first professional loss, Ross Puritty . By securing a 10 round decision, Dimitrenko passed what was seen as his first real test.

He followed that by facing dangerous young contender, Chris Koval , in his next contest on March 5, 2005. Dimitrenko survived a second round knockdown to easily outpoint Koval enroute to a 10 round unanimous decision. As of April 2005, Dimitrenko's professional ring record stands at 18 wins (11 by knockout) in 18 bouts.

He trains with former Klitschko trainer Fritz Zdunek . This has caused many to compare Dimitrenko with the Klitschkos. There are many obvious parallels, such as Dimitrenko's 6'7 height and his Ukrainian heritage. However, it remains to be seen if Dimitrenko will be able to replicate the Klitchkos' professional successes.