Stefan Pfannmöller (born 4 December 1980, in Halle an der Saale) is a German slalom canoeist who competed at the international level from 1997 to 2007.
Competing in two Summer Olympics, he won a bronze medal in the C1 event in Athens in 2004.Pfannmöller also won five medals at the ICF Canoe Slalom World Championships with a gold (C1 team: 2006), three silvers (C1 team: 1999, 2002, 2005), and a bronze (C1: 2003).He is the overall World Cup champion in the C1 class from 2002.
At the European Championships he won a total of six medals (2 golds and 4 silvers).