1865 - 1917 Kuressaare Grammar School for Boys. Studies were held in German and later in Russian.
1915 - 1917 was emigrated to Jaroslavl, Russia.
1919 - 1940 Coeducational grammar school named as Saaremaa Ühisgümnaasium since Jan 15, 1919.  Boys and girls were taught together and study language was Estonian.
Jan 15 is celebrated as schools' birthday every year
1940 - 1941 Estonia was annected by Soviet Russia. School system was reformed and  named as Secondary school of Kuressaare.
1941 - 1944 German occupation. School named as Kuressaare Gümnaasium.
1944 - 1990 Again under the power of Soviet Moscow. Names of the school changed frequently. Some examples: Secondary school of Saaremaa, Kingissepa Secondary school (named by communist V. Kingissepp), 1st Secondary school of Kuressaare. Studies and student activities were controlled by Communist Party.
1991 Estonia became independent and school renamed as Saaremaa Ühisgümnaasium