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

Sportsmen

* Davey O'Brien (1917–1977), American football quarterback *

Dave O'Brien (athletic director) David P. O'Brien (March 16, 1956 – March 1, 2014) was an American collegiate athletic director at Long Beach State College in Long Beach, California, Temple University in Philadelphia, Pennsylvania, and Northeastern University in Boston, Massach ...

(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 Secre ...

, Irish racehorse trainer during 1970s and 1980s * Dave O'Brien (sportscaster) (born 1963), American sportscaster *

David O'Brien (sailor) David O'Brien (born 26 May 1965) is an Irish former yacht racer who competed in the 2000 Summer Olympics The 2000 Summer Olympics, officially the Games of the XXVII Olympiad and also known as Sydney 2000 ( Dharug: ''Gadigal 2000''), the Mi ...

(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) David O'Brien (born 24 January 1984 in Stirling) is a Scottish former professional footballer who used to play as a left-sided midfielder, for home-town side Stirling University now acts as a coach. He has also played for Stirling Albion, Dund ...

(born 1984), Scottish left-sided midfielder *

Dave O'Brien (American football) David Hyde O'Brien (born June 13, 1941) is a former American football tackle, defensive tackle, and guard who played college football for Boston College and professional football for the Minnesota Vikings (1963–1964), New York Giants (1965), ...

, American football player

Others

* Dave O'Brien (actor) (1912–1969), American film and TV performer, director and writer *

David Wright O'Brien David Wright O'Brien (1918–1944) was an American fantasy and science fiction writer. A nephew of Farnsworth Wright, editor of Weird Tales, he was 22 years old when his first story ("Truth Is a Plague!") appeared in the February 1940 issue of Ama ...

(1918–1944), American fantasy and science fiction writer *

David O'Brien (actor) David O'Brien (October 1, 1937 – June 14, 1989) was an American actor best known for his long-running role as Dr. Steve Aldrich on the NBC daytime serial '' The Doctors'' (1967–82). Career Born in the Chicago suburb of Glencoe, O'Brien als ...

(1937–1989), American performer in daytime dramas *

David P. O'Brien David P. O'Brien is a Canadian businessman, currently as chairman of Royal Bank of Canada. Education O'Brien obtained a Bachelor of Arts with Honours in Economics from Concordia University and a Bachelor of Civil Law (1965) from McGill Universi ...

, Canadian business executive since 1980s *

David O'Brien (politician) David Roland Joseph O'Brien (born 2 September 1970) is an Australian politician who represented the National Party in the Victorian Legislative Council. Early life and education O'Brien was born in Melbourne and educated at Sacred Heart Prima ...

(born 1970), Australian politician from Victoria {{hndis, Obrien, David David O'Brien (Politician)