Oleh Lisohor (born 17 January 1979) is a Ukrainian swimmer.
Born in Brovary, Kiev Oblast, Soviet Union (in present-day Ukraine), Lisogor is the former world record holder in the 50 metres breaststroke, long course, with 27.18 seconds. The record was set in Berlin on 2 August 2002. Lisogor is also the former record holder over 50 metres breaststroke (short course).
He won two world titles in the 50 m breaststroke, in 2001 and 2007.