Alexei Klumov (21 August 1907 – 5 September 1944) was a Belarusian Soviet composer, pianist, and music teacher. He was named Honored Artist of the Byelorussian SSR in 1940.
Born in Moscow, Klumov graduated from the Moscow Conservatory in 1934, having studied piano with Heinrich Neuhaus. He completed postgraduate studies at the conservatory in 1937 under Neuhaus again, and also took lessons from Mikhail Gnesin.
After finishing his postgraduate course, Klumov joined the Belarusian State Conservatory as a piano teacher. He became an associate professor in 1939.
His works include the opera The Sword of Uzbekistan, written jointly with Mukhtar Burkhanov, Mieczysław Weinberg, Tolibjon Jalilov, and Tolib Sadykov and first performed in Tashkent in 1941; the musical comedy The Adventures of Fritz (1944); and a Piano Concerto for symphony orchestra (1943). His piano music includes the Belarusian Dance Suite (1939), two sonatas (both 1940), and a concert transcription of excerpts from Aram Khachaturian’s ballet Gayane and the piano piece of the same name.
Klumov also wrote a 1937 cycle for voice and piano to words by Alexander Pushkin, romances, songs, and arrangements of Belarusian folk songs. In addition to his musical work, he was active as a theatre critic.
He died suddenly in Moscow in 1944.