Igor Markovich Yefimov or Igor Efimov (Russian: И́горь Ма́ркович Ефи́мов; August 8, 1937 – August 12, 2020) was an American philosopher, historian, writer and publisher of Russian origin. Some of his works were published under the pen name Andrei Moscovit. Together with Boris Vakhtin [ru], Sergei Dovlatov, Vladimir Gubin [ru], and Vladimir Maramzin [ru], he founded the Leningrad writers' group "Townspeople" (Gorozhane [ru]), whose works circulated in samizdat. He was also the founder of Hermitage Publishers; a company specializing in Russian writers.
