Clinton Earl Portis (born September 1, 1981 in Laurel, Mississippi) is an American football running back. Portis currently plays for the Washington Redskins of the National Football League.

Portis attended high school at Gainesville High School where he was a USA Today Honorable Mention All-American. He was Florida's #4 tailback on the Florida Times-Union Super 75 and No. 27 player in Florida, as well as first-team all-state, all-region and all-area selection.I

Portis starred at the University of Miami. He became just the second true freshman to start at running back since the 1975 season. Portis set a school freshman record with five 100-yard performances, and led the team with 838 yards and eight touchdowns on 143 carries (5.9 avg.) in 10 games. He also caught four passes for 44 yards (11.0 avg.) and 2 touchdowns.

Portis compiled 2,523 yards through three seasons to rank fourth on the Miami career rushing yards list. He also tied the Miami career record for 100-yard rushing performances with a total of 14, matching the total accumulated by Edgerrin James.

Portis rushed for over 1,500 yards in each of his first two seasons with the Broncos, averaging 5.5 yards per carry in that span. The latter is an NFL record for a running back's first two seasons.

After Portis' first season with the Broncos, he was named The "NFL Offensive Rookie of the Year" by the Associated Press and was also voted to the Pro Bowl in 2003.

Trade Prior to the 2004 season, the Broncos traded Portis to the Redskins for cornerback Champ Bailey and a second-round draft pick in the 2004 NFL Draft which the Broncos used to select Tatum Bell. The Redskins signed Portis to an eight-year contract worth $50.5 million.