Jonathan Thomas Coutlangus
- Bats Left, Throws Left
- Height 6' 1", Weight 185 lb.
- School University of South Carolina
- High School Port St. Lucie High School
- Debut April 7, 2007
- Final Game September 25, 2007
- Born October 21, 1980 in Fort Lauderdale, FL USA
Jon Coutlangus was selected by the San Francisco Giants in the 19th round of the 2003 amateur draft and signed by scout Dick Tidrow. He had hit .316 his last year, stealing 13 bases. Debuting with the Salem-Keizer Volcanoes, he hit .301/.394/.392 and was 8th in the Northwest League in average. Jon slipped to a .194/.242/.293 line for the 2004 Hagerstown Suns, with 12 steals in 16 attempts.
A year later, though, he was a relief pitcher for the San Jose Giants. He went 4-0 with three saves and a 3.04 ERA in 50 relief appearances, striking out 79 in 77 innings. Before the 2006 season, the Cincinnati Reds claimed him off waivers from the Giants. He was 1-3 with 9 saves and a 2.86 ERA in 49 outings for the Chattanooga Lookouts, allowing a .185 average. In two games for the Louisville Bats, he did not give up a run.
Jon Coutlangus made the Reds' staff out of spring training 2007, and made his first major league appearance on April 7, pitching 2/3 of an inning against the Pittsburgh Pirates. Coutlangus was a regularly used member of the 2007 Reds bullpen, appearing 64 times for a total of 41 innings. He was 4-2 with a 4.39 ERA.
In April 2008, Coutlangus was dealt to the Arizona Diamondbacks for Daniel Perales. He pitched for the D-Backs AAA affiliates in Tucson in 2008 and Reno in 2009. He was 0-2, 12.71 in only 5 games the first year, being injured the rest of the season, then 1-0, 6.52 in 21 games the second, after which he retired.