Hrayr Karapetyan was born on August 11, 1963 in Yerevan.
Mr. Karapetyan graduated from the Khatchadur Abovyan State Pedagogical Institute in 1985 and did his postgraduate studies there. He is a teacher and psychologist. He was awarded a Marshal Baghramyan Medal in 2002.
From 1980-1981 he was a worker in the Yerevan Electrical Bulb Factory. From 1985-1987 he was a teacher in Nor Geghi Secondary School. From 1987-1990 he taught in Yerevan Secondary School # 181. From 1987-1989 he was the editor of Zangakatoun periodical under the Miatsoum Organization. From 1990-1995 he was a member of the Central Committee of the Armenian Revolutionary Federation Party in Armenia. From 1990-1992 he took part in the defense of Getashen, Shahoumyan and Berdadzor. From 1996-1998 he was a member of the Executive Council of the Armenian Revolutionary Federation. For the next five years he was the regional governor of Ararat.
On May 25, 2003 he was elected to the NA from the proportional list of the Armenian Revolutionary Federation and he is on the NA Standing Committee on Defense, National Security and Internal Affairs. He is a member of both the Armenian Revolutionary Federation Faction and party.
Mr. Karapetyan is married and has three children.