Alexander Nepomniaschy, ASC (; born 1955) is a Russian-American cinematographer.
Nepomniaschy was born in Moscow in 1955, and moved to the United States in 1974. He attended New York University's Tisch School of the Arts and the AFI Conservatory, graduating with a Master of Fine Arts in cinematography in 1982. He was invited to join the Academy of Motion Picture Arts and Sciences in 2013.