John McCarthy

John Michael McCarthy (born October 12, 1962) is a retired American mixed martial arts (MMA) referee best known for officiating numerous bouts promoted by the Ultimate Fighting Championship (UFC), dating back to UFC 2.

Known for

The Naked Gun

2025 • Referee

The Ronda Rousey Story: Through My Father's Eyes

Once I Was a Champion

2011 • Himself

UFC Ultimate Knockouts

2003 • Himself

Full filmography

The Naked Gun

2025 • Referee

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The Ronda Rousey Story: Through My Father's Eyes

2019 • Self

2016 • Himself

2015 • Self

2015 • Sam

2012 • Himself

Once I Was a Champion

2011 • Himself

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UFC Ultimate Knockouts

2003 • Himself

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UFC Hits: Volume 1

2000 • Self / Referee

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Blue Streak

1999 • S.W.A.T. Team Member

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UFC 10: The Tournament

1996 • Self-Referee

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UFC 3: The American Dream

1994

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