Nicholas "Nick" Mevoli (d. November 17, 2013) was an American free diver who died while attempting to set an American record at the Vertical Blue competition at Dean's Blue Hole in the Bahamas. He was the American record holder and the only American to dive more than 100 metres. He finished third in the Constant Weight Without Fins category at the free-diving world championships in Greece in September 2013.

Mevoli, a native of Florida, lived in Williamsburg, Brooklyn, New York. He worked as a prop man in the film and television industry in New York. Mevoli began free-diving competitively in early 2012. He twice won titles at the Deja Blue competition and finished third at the Caribbean Cup in Roatán, Honduras.

On November 15, 2013, Mevoli attempted to reach a depth of 96 metres (315 ft) in the Free Immersion category at Vertical Blue, but had to turn back at 80 metres (260 ft) after suffering an upper respiratory squeeze. On November 17, Mevoli attempted a dive to 72 metres (236 ft) on a single breath. He began to turn back at 68 metres (223 ft), but appeared to change his mind and dived downward again. Mevoli returned to the surface after 3 minutes and 38 seconds underwater, but fell backwards into the ocean and lost consciousness. Safety divers and the event physician attempted to revive Mevoli, whose pulse disappeared. After resuscitation efforts had continued for 90 minutes, he was transported to Vid Simms Memorial Health Center, reportedly suffering from pulmonary edema. Mevoli died at 1:44 p.m. He was the first athlete to die in an international free-diving competition.