Jens Schreiber (born 26 August 1982) is a German freestyle swimmer who won four medals at European Short Course Swimming Championships in 2003, 2004 and 2006; in 2006, his 4×50 m medley relay team won gold medals, setting a new world record.
He also competed in four freestyle events at the Summer Olympics of 2004 and 2008; his best achievement was sixth place in the 4 × 200 m freestyle relay in 2004.