Avetik Abrahamyan, best known as Arthur Abraham, is an Armenian-German former professional boxer who competed from 2003 to 2018. He held multiple world championships in two weight classes, including the IBF middleweight title from 2005 to 2009, and the WBO super-middleweight title twice between 2012 and 2016.

Avetik Abrahamyan was born in Yerevan, Soviet Armenia on 20 February 1980 to parents Grigor and Sylvia Abrahamyan. He moved to Germany with his parents and brothers in 1995 at the age of 15. As a teenager, Abraham showed an interest in cycling and eventually became the North Bavarian and Franconian Youth Champion. However, after watching an exciting Mike Tyson fight, Arthur was inspired to become a boxing star too.In 1999, Arthur and his brothers returned to Armenia for military service. After 2002, all the brothers had finished their military service and returned to Germany in 2003.

Abraham boxed as an amateur in Bamberg and later in Nuremberg. He was an International junior welterweight German champion in 1997 and a three time Senior light middleweight Armenian champion in 2000, 2001 and 2002. Abraham attempted to compete for Armenia at the 2000 Summer Olympics, but was unable due to his two years of military service. In 2003, with Arthur and his brother Alexander returned to Germany, hoping to begin a professional boxing career. His final amateur record was 81-3-6 (48 KO).

In 2003, Arthur and Alexander competed alongside promoter and manager Wilfried Sauerland and his head coach Ulli Wegner. Arthur was a sparring partner for IBF and WBA super middleweight champion Sven Ottke, whom was in the preparations of a title defense. Wegner was so impressed that he began to train Arthur personally.