Ahmed ran for 1,020 yards and 11 touchdowns this season. He served as a backup to Myles Gaskin for his first two seasons before moving into the starting role this year. Ahmed averaged 5.4 yards per carry this season and 5.7 yards per attempt for his career.
Ahmed played in 39 games overall and finished with 2,016 yards rushing and 21 touchdowns.
"I want to thank Salvon for all of the hard work he has put in, both on and off the field," Washington coach Jimmy Lake said in a statement. "He was a great example of what Husky Football is all about, and I'm sure that he'll have plenty of success in the future."