Galoust Sahakyan was born on April 8, 1948 in Yerevan.
Mr. Sahakyan graduated with a degree in philology from Yerevan State University in 1971.
From 1970-1972 he was a metalworker in the Yerevan Silk Complex. For the next nineteen years he worked as a teacher at School # 30, then as a deputy to the headmaster at School # 94 then School # 153; thereafter he was headmaster at School # 3 and then School # 185. From 1991-1996 he was first the deputy and later chairman of the Executive Committee of Mashtots District Council in Yerevan.
1995-1999 was his first term as a deputy in the NA (electoral district # 32) and he was on the NA Standing Committee on Science, Education, Culture and Youth Affairs. He was first a member of the Republic Faction and later Yerkrapah Deputy Group.
1999-2003 was his second term as a deputy of the NA (proportional system, Unity Alliance) and he was the deputy chairman of the NA Standing Committee on Science, Education, Culture and Youth Affairs. He was first a member and later leader of the Unity Faction.
From 2003-2007 he was a deputy in the NA (proportional system, RPA.). He was a member of the NA Standing Committee on State and Legal Affairs. He was the head of the Republican Party of Armenia Faction.
On May 12, 2007 he was elected as a deputy of the National Assembly by the proportional system from the Republican Party of Armenia/RPA. He is a member of the board of the Republican Party of Armenia.
Mr. Sahakyan is married and has two children.