Alexander Stepanovich Pirogov (Russian: Àëåêñà́íäð Ñòåïà́íîâè÷ Ïèðîãî́â; 1899-1964) was a Russian bass opera singer.
Pirogov was born in the village of Novosyolki, one of five sons of a musical father. Four of the five brothers became singers, most notably Grigory, also a bass. In 1924-1954, 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. In 1955, he played Boris Godunov in a film version, winning a medal in Italy. He never performed outside the Soviet Union.
Oratorio for soloists, chorus and orchestra (the first version), op.17 (1944)