Armenian weightlifter, silver medalist at the Beijing 2008 Olympic Games in the 85 kg class with a 380 kg total (177 kg snatch, 203 kg clean & jerk). Born in Leninakan (today Gyumri).
During his youth career, Martirosyan was a three-time consecutive Youth European Champion in 1997, 1998 and 1999. He also won World Championship bronze in 2006 and finished seventh at the Athens 2004 Olympics.
He was awarded the Honored Master of Sports of Armenia title in 2009.