Sabrina Mockenhaupt (born 6 December 1980 in Siegen) is a German long-distance runner who specialises in track events and the marathon. She is a two-time winner of the Cologne Marathon and has also won the Frankfurt Marathon and the Berlin Half Marathon. She represented Germany at the 2004, 2008 and 2012 Summer Olympics and was the 3000 metres bronze medallist at the 2005 European Indoor Championships. She has a marathon best of 2:26:21, set at the 2010 Berlin Marathon.
One of her first international medals was a bronze medal in the 10,000 metres at the 2001 European Athletics U23 Championships. In 2002, she finished eighth in 3000 metres at the 2002 European Indoor Championships, tenth in 10,000 metres at the 2002 European Championships and seventh in 5000 metres at the 2002 World Cup.
In 2004, she finished seventh in 3000 m at the 2004 World Indoor Championships, and fifteenth in the 10,000 m at the 2004 Olympics. In 2005, she won the bronze medal in 3000 metres at the 2005 European Indoor Championships, finished seventeenth in 10,000 metres at the 2005 World Championships and sixth in 5000 metres at the 2005 World Athletics Final.