|Date of birth||April 22, 1980|
|Place of birth||Chester, Pennsylvania|
|College||Virginia & Hofstra|
|2003–2005||St. Louis Rams|
Arlen Quincy Harris (born April 22, 1980 in Chester, Pennsylvania) is a former NFL running back played for the St. Louis Rams, Detroit Lions, and the Atlanta Falcons. He played college football for the University of Virginia and Hofstra University. He won a PIAA State Championship at Downingtown High School.
In college, Harris did not play either his junior year, due to an injury to his knee, or his senior year because he transferred and lost that year's eligibility. So, Harris did not play football for two years until he made his return to football in an all-star game in Las Vegas and was named MVP.
Harris was undrafted, but he was signed by the NFL's St. Louis Rams. He played three seasons with the Rams, starting three games. He moved to the Detroit Lions in 2006, also starting three games there.
In the off-season, he joined several churches in Pennsylvania, where he focused on helping kids, while also giving out autographed sportscards. Harris has been married to his wife Heather for nine years, and together they have three children Caeli, Arlen Jr., and Ayden. He was a strength and conditioning coach at Niagara football academy. In December 2014, he was named head football coach at Lutheran St. Charles HS in Missouri.
- McPherson, Chris. "Harris enjoying success in St. Louis". Daily Local News, October 30, 2003. Retrieved on May 27, 2013.
- Palmer, Pete; Pullis, Ken; Lahman, Sean; Silverman, Matthew; Gillette, Gary (Eds.). The ESPN Pro Football Encyclopedia: First Edition, p. 291. ESPN Books, 2006. ISBN 978-1-4027-4216-3.
- CBS Sports. "Arlen Harris, NFL". Retrieved on May 27, 2013.