Mark Zeltser (born April 8, 1947) is a Soviet-American pianist and music teacher. He was born in Chisinau, in the Moldavian Soviet Socialist Republic of the Soviet Union, into a musical family. His father, Yefim Zeltser, was vice rector for administrative and economic affairs at the Chisinau Conservatory, later the Moldavian State Conservatory and the Gavriil Musicescu Institute of Arts. His mother, Berta Zeltser, was a concert accompanist and teacher at the same conservatory. His maternal grandfather, Mark Pester, was a prominent music teacher and conductor in prewar Bessarabia.
Zeltser began studying piano with his mother and attended the Eugen Coca Chisinau Secondary Music School. At the age of nine, he made his debut with a chamber orchestra conducted by Froim Vyshkautsan. He later studied at the Moscow State Conservatory, in Yakov Flier's special piano class and Tatyana Gaidamovich's chamber-ensemble class.
While a conservatory student, Zeltser won prizes at several international competitions, including the Ferruccio Busoni Piano Competition in Bolzano in 1968, the Grand Prix at the Long-Thibaud Competition in Paris, and the All-Union Piano Competition in Moscow. After graduating, he was assigned to Chisinau, where he taught at the Gavriil Musicescu Institute of Arts before beginning a solo career.
From 1975 he has lived in the United States, in New York. Since 1998 he has been a professor at Centenary College of Louisiana, while continuing his concert career. In addition to solo recordings, he has recorded with Herbert von Karajan, Rudolf Barshai, Yo-Yo Ma, and Anne-Sophie Mutter. With his wife, he created the website everynote.com, intended to make every classical work ever written accessible.
His recordings include music by Rachmaninoff and Prokofiev with the Cologne Radio Symphony Orchestra conducted by Rudolf Barshai, Prokofiev's Piano Sonata No. 8 and Five Sarcasms alongside Balakirev's Islamey, and Beethoven's Triple Concerto with Anne-Sophie Mutter, Yo-Yo Ma, and the Berlin Philharmonic conducted by Herbert von Karajan.