Serhiy Leonidovich Fesenko (born January 29, 1959) is a former Soviet swimmer and Olympic champion. He competed at the 1980 Olympic Games in Moscow, where he won the gold medal in 200 m butterfly.
He graduated from Kiev University of Physical Education. He competed for the "Avangard" Club (Kiev). Honored Master of Sports of USSR (1978). Champion 1980 Olympic Games in 200 m butterfly (1.59,76). Silver medalist of the Olympic Games 1980 in 400 meter individual medley (4.23,43). Silver medalist at 1978 World Swimming Championships and 1982 FINA World Swimming Championships in 200 meters butterfly. Bronze in 1982 FINA World Swimming Championships in 400 meter individual medley. 1977 and 1981 European Championship champion in 400 meter individual medley. Silver medalist of the 1983 European Championship in 200 m butterfly. Bronze medalist of the 1981 European Championship in 200 meter butterfly. The winner of the competition at the European Cup 1979, 1981 in the 200 meter butterfly, 1982 in 400 meter medley. The winner of the World Universiade 1981 and 1983 in the 200 meter butterfly, 1981 in 200 and 400 meter individual medley. USSR Championship 1977, 1978, 1979, 1980, 1981, 1982, 1983.
Sergey has married his schoolmate Iryna Fesenko in 1980. They have two sons, Sergiy Fesenko, Jr. (born in 1982) and Kyrylo Fesenko (born in 1986). Both are swimmers.
Iryna is an interior, home, and landscape designer.
Sergiy Jr. competed in the 2000 Olympic Games in Sydney, Australia, 2004 Olympic Games in Athens, Greece and qualified for 2008 Olympic Games in Beijing, China for his native country. He is a former student at the Indiana University. Sergiy became a Big Ten swimmer of the week twice and once an NCAA swimmer of the week in 2005-2006 collegiate season.
Kyrylo competed at 2006 European Championships in Budapest and 2008 European Championships in Eindhoven. He's a student at Drury University, and NCAA D2 individual and team champion for 2006–2007, 2007–2008 and 2008-2009 collegiate seasons.
- YouTube heat 400 IM Olympic Games -80
- YouTube heat 200 m butterfly Olympic Games -80