Ron O'Brien may refer to:
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Ron O'Brien (coach), American diving coach
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Ron O'Brien (DJ)
"Big" Ron O'Brien (real name: Richard Walls; October 24, 1951 – April 27, 2008) was a disc jockey
A disc jockey, more commonly abbreviated as DJ, is a person who plays recorded music for an audience. Types of DJs include radio DJs ( ...
(1951–2008), American disc jockey
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Ron O'Brien (footballer) (born 1942), Australian rules footballer for Richmond
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Ronnie O'Brien
Ronnie O'Brien (born 5 January 1979) is an Irish retired footballer.
Although released early in his career by his first club Middlesbrough, he was subsequently signed by Juventus in 1999. During three years with the Italian club, he played only ...
(born 1979), Irish footballer
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