Ryan Dungey (born December 4, 1989) is an American retired professional motocross and supercross racer.

Dungey, who attended Guardian Angels Catholic School in Chaska, Minnesota,[1] routinely expresses his Christian faith in interviews.

Despite being a "B" rider and generating mostly 10th-place finishes he attracted the attention of Suzuki team manager, Roger De Coster.

Dungey entered his first professional race at his home track of Spring Creek in Millville, Minnesota.

At the season finale Dave Coombs East–West Shootout in Las Vegas, Ryan won by 4.7 seconds over second-place Jake Weimer.

In his first full season of AMA Motocross, Dungey would place 3–3 in Round 1 for his first professional career podium.

Throughout the early half he built a sizeable points lead, but by mid-season his advantage had dwindled and dropped to a two-point deficit behind his rival, Jason Lawrence who took the championship.

[2] In his final year in the 250 class he dominated the 250 West Supercross while battling Kawasaki’s Christophe Pourcel for the AMA Motocross Championship.

[6] The US was not expected to be competitive in the 2009 Motocross des Nations due to James Stewart and Ryan Villopoto both being out with injuries.

In a contest that came down to a battle between the US, French and host Italian teams, Dungey ultimately took 1st in the final moto and secured the USA’s 20th MXoN victory.

Dungey started off strong leading most of the first season race until James made a pass with 2 laps to go.

He still came in a respectable 3rd in the Supercross season behind Ryan Villopoto and Chad Reed, but word of a team change began to spread.

Dungey joined De Coster at Red Bull KTM factory racing and they built a production bike to his liking for the 2012 AMA Supercross.

[7] Though not his best year, Dungey would stand on the podium in 23 of the season's 29 races foreshadowing the moniker "Diesel" due to the consistency of his performances.

[9] After the only 5th-place finish of the year at round 6 of the outdoor, Dungey managed to obtain 21 straight podiums carrying over into the 2016 season.

In all-time 450 motocross overall wins, Dungey is second with 39 to Ricky Carmichael and ahead of Bob Hannah.

[14] After working with Target stores in 2012 and 2013, he organized the MN River-to-River Ride to benefit St. Jude Children's Research Hospital.