Jochen Lettmann (born 10 April 1969, in Duisburg) is a German slalom canoeist who competed in the 1990s. Competing in two Summer Olympics, he won a bronze medal in the K1 event in Barcelona in 1992.
Lettmann also won two medals in the K1 team event at the ICF Canoe Slalom World Championships with a gold in 1995 and a bronze in 1997. He also has two medals from the 1996 European Championships in Augsburg (a team gold and an individual bronze).