Richard Lee Murphy (born September 18, 1986) is an American football running back for the Jacksonville Jaguars of the National Football League (NFL). He was signed by the Jaguars as an undrafted free agent in 2011. He played college football at Louisiana State. Only a "part-time player" over his career at LSU, Murphy was seen as a development prospect, and went undrafted in the 2011 NFL Draft. Murphy was released by the Jaguars on August 31, 2012. He was signed to the team's practice squad on October 31.