Born in Yerevan. In 1952 Galachyan graduated from the Komitas State Conservatory of Yerevan, the Opera Singing Department, the class of Tamar Melik-Shahnazaryan. From 1952-56 and since 1960 she was a soloist at the Yerevan Opera and Ballet Theater named after A. Spendiaryan, and in 1956-1959 she was a soloist at Moscow's Bolshoi Theatre. Since 1979 she taught at the Komitas State Conservatory of Yerevan (professor, since 1997). In 1967 she was awarded the title of People's Artist of Armenia. Died in Yerevan.
