Yan Petrovich Gaylit (Russian: ?? ?????´??? ??´????, Latvian: Janis Gailitis; May 25, 1894 – August 1, 1938) was a Soviet Komkor of Latvian ethnicity.
He fought in the Imperial Russian Army in World War I before going over to the Bolsheviks in the subsequent civil war.
He was a recipient of the Order of the Red Banner.
During the Great Purge, as a part of the so-called "Latvian Operation", Gaylit was arrested by the NKVD on August 15, 1937 and executed the following year.