Jason Hartmann (born March 23, 1981) is an NCAA coach and a former American long-distance runner who specializes in marathon races.

[2] He began 2006 with a personal record of 63:07 minutes for the half marathon, taking second place in the national championship race in Houston, Texas.

[8] He failed to finish (due to Ryan Hall's fast pace) at the London Marathon in April, but enjoyed some success over 10,000 m: he set a personal best of 28:15.22 minutes at the Stanford Invitational and was sixth at both the national championships at 2007 Pan American Games.

He changed coach in 2009 from Brad Hudson to Steve Jones and competed at mass races including the Cherry Blossom 10-miler, Steamboat Classic and Bolder Boulder.

[9] Hartmann had his first major win at the Twin Cities Marathon, where he defeated the favored Kenyan runners in the final stages to lift the title in a time of 2:12:09.

[11] He came fourth at the Fifth Third River Bank Run in 2010, but preparations for the 2010 Chicago Marathon were interrupted by a break with his coach, Steve Jones.

Hartmann had geared his preparations towards he 2012 U.S. Olympic Marathon Trials, chase pack leader at halfway point, but finished far off his target of the top three as he ended the race in 32nd place.

The leaders dramatically slowed in the heat while Hartmann worked his way up to field to eventually finish in fourth place (the only non-Kenyan to make the top six).

In August 2018, Hartmann recognized the skill and ability of SVSU's throws coach Nick Halabicky adding he viewed him as a mentor.