About Bob O'Brien
Born 1949. Bob O'Brien is an American baseball player.
Robert Allen O'Brien (born April 23, 1949) is an American former pitcher in Major League Baseball. He pitched in 14 games for the Los Angeles Dodgers during the 1971 season, including four starts and one shutout.
Baseball career O'Brien was acquired along with Doyle Alexander, Sergio Robles and Royle Stillman by the Baltimore Orioles from the Dodgers for Frank Robinson and Pete Richert at the Winter Meetings on December 2, 1971.
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Important facts
People in Bob O'Brien's life
Named in this biography and alive at the same time
Related people
Same field, nearest in time
Contemporaries
People whose lives overlapped Bob O'Brien's
Frequently asked questions
Who is Bob O'Brien?
American baseball player
When was Bob O'Brien born?
Bob O'Brien was born on 23 April 1949 in Pittsburgh.
What is Bob O'Brien's occupation?
Bob O'Brien is a baseball player.
What nationality is Bob O'Brien?
Bob O'Brien is American.
Sources & further reading
· DBpedia: Bob O'Brien (baseball)
Cite this page
APA: Biography.guide. (2026). Bob O'Brien. https://biography.guide/bob-o-brien-baseball-player/
MLA: "Bob O'Brien." Biography.guide, https://biography.guide/bob-o-brien-baseball-player/.
Chicago: "Bob O'Brien." Biography.guide. https://biography.guide/bob-o-brien-baseball-player/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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