Dave, Davey or David O'Brien may refer to:

Sportsmen

Davey O'Brien Robert David O'Brien (June 22, 1917 – November 18, 1977) was an American football quarterback. He played college football at Texas Christian University (TCU) and professionally in the National Football League (NFL) with the Philadelphia Eagle ...

(1917–1977), American football quarterback * Dave O'Brien (athletic director) (1956–2014), American collegiate professor at Long Beach, Temple and Northeastern *

David O'Brien (racehorse trainer) David O'Brien is a former Irish racehorse trainer. He was the son of the successful trainer Vincent O'Brien and Jacqueline O'Brien (), author and photographer. His primary successes included Assert, who won the Irish and French Derbies, and Secr ...

, Irish racehorse trainer during 1970s and 1980s *

Dave O'Brien (sportscaster) David O'Brien (born August 3, 1963) is an American sportscaster who is a lead play-by-play announcer on the New England Sports Network (NESN) for telecasts of the Boston Red Sox of Major League Baseball (MLB), and for college football and colle ...

(born 1963), American sportscaster * David O'Brien (sailor) (born 1965), Irish yacht racer in 2000 Summer Olympics *

David O'Brien (swimmer) David O'Brien (born 28 January 1983) is a retired British swimmer, who specialized in freestyle events. He is a single-time Olympian (2004), a resident athlete of Team GB, and a member of Stirling Swimming Club, under head coach Chris Martin. O ...

(born 1983), English freestyle in 2004 Summer Olympics * David O'Brien (footballer) (born 1984), Scottish left-sided midfielder * Dave O'Brien (American football), American football player

Others

Dave O'Brien (actor) Dave O'Brien (born David Poole Fronabarger, May 31, 1912 – November 8, 1969) was an American film actor, director, and writer. Life and career Born in Big Spring, Texas, O'Brien started his film career performing in choruses and working as ...

(1912–1969), American film and TV performer, director and writer * David Wright O'Brien (1918–1944), American fantasy and science fiction writer * David O'Brien (actor) (1937–1989), American performer in daytime dramas * David P. O'Brien, Canadian business executive since 1980s * David O'Brien (politician) (born 1970), Australian politician from Victoria {{hndis, Obrien, David David O'Brien (Politician)