Mark Warnecke

Mark Warnecke (born 15 February 1970 in Bochum, North Rhine-Westphalia) is a German former breaststroke swimmer who, at age 35, won the world title in the 50 m breaststroke at the 2005 World Aquatics Championships in Montreal. That made him the oldest swimming world champion since 1971. He started for the German swimming club SG Essen.

Warnecke competed in four consecutive Summer Olympics for his native country, starting in 1988 in Seoul, South Korea, where he was a member of the 4×100 m medley relay team, that finished in fourth position. Eight years later, he won the bronze medal in the 100 m breaststroke, at the 1996 Summer Olympics in Atlanta, Georgia.