Cowboy (also known as UFC Fight Night 83) was a mixed martial arts event held on February 21, 2016, at the Consol Energy Center in Pittsburgh, Pennsylvania.

[2] It was originally expected to be headlined by a welterweight bout between former UFC Lightweight Championship challenger Donald Cerrone and Tim Means.

[4] On February 3, it was announced that Means was informed of a potential USADA anti-doping policy violation stemming from an out-of-competition sample collection.

Because there was insufficient time for a full review and proper promotion before the scheduled bout, Means was pulled from the fight by the UFC.

[16] Also on the week leading up to the event, Trevor Smith pulled out of his middleweight bout against Leonardo Augusto Guimaraes due to a hand injury.