Pavel Alexandrovich Iliashenko (Russian: ????? ????????????? ?????????; born 23 June 1990 in Ufa, Russia) is a modern pentathlete from Kazakhstan.
He competed at the 2012 Summer Olympics in London, where he finished twenty-ninth in the men's event, with a score of 5,432 points.
Iliashenko also won a silver medal at the 2011 UIPM Junior World Championships in Buenos Aires, Argentina.