Thomas Michael "Tom" Jager (born 6 October 1964 in Collinsville, Illinois) is a USA Olympic and former world record freestyle sprinter. He swam on the 1984, 1988 and 1992 USA Olympic Swimming Teams where he earned seven medals, including five golds. He held the world record in the 50m freestyle at 3 different times, and at one point for over 10 years (May 1990-June 2000). He is an 11-time USA Swimming national champion and a 5-time NCAA champion.
He is a member of the UCLA Athletic Hall of Fame and the USA Swim Team of the Century. In 2001 Jager was inducted in the International Swimming Hall of Fame.
In 2004 he became the Head Coach of the University of Idaho women's swim team and is currently the Head Coach at Washington State University.