Jonathon Riley is a runner who specialized in middle-distance and long-distance disciplines in competitive track and field.

He represented the United States in the men's 5000 metres at the 2004 Summer Olympics.

At an all-comers high school meet, after being tipped as one of only three high schoolers in the United States challenging the 4-minute mile barrier, Riley ran a 1500 metres race in 3:43.18.

Despite having a star-studded track team, Riley managed to stand out and even set the school's record for the 3000 metres, which he ran in 7:46 (min:sec).

He qualified for the US Olympic team in 2004 and even ran the first heat of the men's 5000 metres at the 2004 Summer Olympics, but finished 14th of 18 competitors in the first heat and did not make it to the final round.