Alexander Stepanovich Pirogov (Russian: Алекса́ндр Степа́нович Пирого́в; 1899–1964) was a Russian bass opera singer. Pirogov was born in Ryazan, one of five sons of a musical father. Four of the five brothers became singers, most notably Grigory, also a bass. From 1924 through 1954, he was one of the main bass soloists of the Bolshoi Theatre along with Mark Reizen, and Maxim Mikhailov. He recorded under Samuil Samosud, Alexander Melik-Pashayev, Aleksandr Gauk, Nikolai Golovanov, and Vassili Nebolsin.