Richard Luke Lawton (born August 26, 1980) is a former American football fullback.

Lawton attended Saint Thomas More High School in Lafayette, Louisiana, and lettered in football and baseball.

Lawton earned three-time All-Conference and two-time All-America honors at fullback from The Sporting News.

Mel Kiper Jr. also listed Lawton as the top fullback prospect in the country in 2004 in all divisions.

He caught his first touchdown pass from Peyton Manning in the fourth quarter of the second meeting between the Colts and Jacksonville Jaguars in week thirteen.

Lawton was suspended for four games by the NFL on December 24, 2009, for violation of the league's ban on performance-enhancing substances.