It includes leaders of short - lived Azerbaijan Democratic Republic ( 1918 -- 1920 ) , of Soviet Azerbaijan ( 1920 -- 1991 ) , and of post-Soviet era .
25 people have been head of the Azerbaijani state since its establishment in 1918 .
It includes leaders of short - lived Azerbaijan Democratic Republic ( 1918 -- 1920 ) , of Azerbaijani   ( 1920 -- 1991 ) , and of post-Soviet era .
25 people have been head of the Azerbaijani state since its establishment in 1918 .