Jason Marshall (born June 20, 1978) is a former professional tennis player from the United States.

Born in Dallas, Marshall attended J.J. Pearce High School in Richardson, Texas.

After an injury-plagued high school tennis career, he was recruited by Indiana's Purdue University, where he was a two-time Big Ten singles champion.

A left-handed player, Marshall reached a best doubles ranking of 101 in the world and featured in the main draw of five ATP Tour tournaments from 2003 to 2005.

[2] As a singles player, he had a win over Marcos Baghdatis in the qualifying draw of the 2005 Ho Chi Minh City Open and won an ITF tournament in Tijuana the same year.