Lev Loseff (Russian: Лев Влади́мирович Ло́сев; birth name Lev Lifshitz; June 15, 1937 – May 6, 2009) was a Russian poet, literary critic, essayist and educator.
The son of poet Vladimir Lifshitz, Loseff was born in Leningrad. He attended Leningrad's famous Saint Peter's School and graduated from the journalism department of the Leningrad State University.
Loseff immigrated to the U.S. in 1976. He earned a Ph.D. in Slavic Languages and Literatures from the University of Michigan and became a professor of Russian literature at Dartmouth College in Hanover, New Hampshire, a position he held until his death thirty years later. In his later years Loseff was a Russian-language radio personality and a prolific author, writing both poetry and non-fiction works on Russian literature.
Loseff died on May 6, 2009, in Hanover, NH.