The Ballplayers
A Baseball Player Encyclopedia (O'Berry to Oliveras)

Baseball Almanac is pleased to present a comprehensive list of EVERY Major League player whose last name falls between the names above. Included on the chart are links to the players biography, the years he played, an Auto(graphed) baseball card notation (Y=Yes) and a (HOF) Hall of Fame mark (Y=Yes). Bold entries stand for active players which are defined as those who played in at least one Major League game during the most recently completed season.

Baseball Almanac Top Quote

"I went three days without a hit and my wife refused to cook me dinner. When I didn't get a hit the fourth day, she gave her tickets away. I guess if I ever go a week without a hit, I'll be sleeping in a tent in the backyard." - Al Oliver

The Ballplayers

A Comprehensive Player Registry

O'Berry
to
Oliveros
O is for Ott
Of the restless right foot.
When he leaned on the pellet,
The pellet stayed put.
380 Players
Mike O'Berry1979 - 1985Yplayer address 
Billy O'Brien1884 - 1890   
Bob O'Brien1971 - 1971Yplayer address 
Buck O'Brien1911 - 1913   
Charlie O'Brien1985 - 2000Yplayer address 
Cinders O'Brien1888 - 1891   
Dan O'Brien1978 - 1979Yplayer address 
Darby O'Brien1887 - 1892   
Dink O'Brien1923 - 1923   
Eddie O'Brien1953 - 1958Y  
George O'Brien1915 - 1915   
Jack O'Brien1882 - 1890   
Jack O'Brien1899 - 1903   
John O'Brien1884 - 1884   
John O'Brien1891 - 1899   
Johnny O'Brien1953 - 1959Yplayer address 
Pete O'Brien1887 - 1890   
Pete O'Brien1901 - 1907   
Pete O'Brien1982 - 1993Yplayer address 
Peter O'Brien2015 - 2019Yplayer address 
Ray O'Brien1916 - 1916   
Riley O'Brien2021 - 2022   
Syd O'Brien1969 - 1972Yplayer address 
Tom O'Brien1882 - 1890   
Tom O'Brien1897 - 1900   
Tommy O'Brien1943 - 1950   
Danny O'Connell1950 - 1962   
Jimmy O'Connell1923 - 1924   
John O'Connell1891 - 1902   
John O'Connell1928 - 1929   
Pat O'Connell1886 - 1886   
Andy O'Connor1908 - 1908   
Brian O'Connor2000 - 2000Yplayer address 
Dan O'Connor1890 - 1890   
Frank O'Connor1893 - 1893   
Jack O'Connor1887 - 1910   
Jack O'Connor1981 - 1987Yplayer address 
Johnny O'Connor1916 - 1916   
Mike O'Connor2006 - 2011Yplayer address 
Paddy O'Connor1908 - 1918   
Darren O'Day2008 - 2022Yplayer address 
Hank O'Day1884 - 1890  Y - 2013
Ken O'Dea1935 - 1946Y  
Paul O'Dea1944 - 1945   
Billy O'Dell1954 - 1967Y  
George O'Donnell1954 - 1954   
Harry O'Donnell1927 - 1927   
John O'Donnell1884 - 1884   
John O'Donoghue1963 - 1971Yplayer address 
John O'Donoghue1993 - 1993Yplayer address 
Lefty O'Doul1919 - 1934Y  
Bob O'Farrell1915 - 1935Y  
Eric O'Flaherty2006 - 2017Yplayer address 
Brian O'Grady2019 - 2021Y  
Chris O'Grady2017 - 2018Yplayer address 
Hal O'Hagan1892 - 1902   
Greg O'Halloran1994 - 1994Yplayer address 
Bill O'Hara1909 - 1910   
Kid O'Hara1904 - 1904   
Tom O'Hara1906 - 1907   
Ryan O'Hearn2018 - 2023Yplayer address 
Logan O'Hoppe2022 - 2023Yplayer address 
Brian O'Keefe2022 - 2023Yplayer address 
Charley O'Leary1904 - 1934   
Dan O'Leary1879 - 1884   
Troy O'Leary1993 - 2003Yplayer address 
Pat O'Loughlin1883 - 1883   
Ryan O'Malley2006 - 2006Yplayer address 
Shawn O'Malley2014 - 2016Y  
Tom O'Malley1982 - 1990Yplayer address 
Ollie O'Mara1912 - 1919   
Eddie O'Meara1895 - 1896   
Randy O'Neal1984 - 1990Yplayer address 
Skinny O'Neal1925 - 1927   
Denny O'Neil1893 - 1893   
Ed O'Neil1890 - 1890   
John O'Neil1946 - 1946   
Mickey O'Neil1919 - 1927   
Bill O'Neill1904 - 1906   
Emmett O'Neill1943 - 1946Y  
Fred O'Neill1887 - 1887   
Harry O'Neill1922 - 1923   
Harry O'Neill1939 - 1939   
Jack O'Neill1902 - 1906   
Jim O'Neill1920 - 1923   
John O'Neill1899 - 1902   
Mike O'Neill1901 - 1907   
Paul O'Neill1985 - 2001Yplayer address 
Peaches O'Neill1904 - 1904   
Steve O'Neill1911 - 1928   
Tip O'Neill1883 - 1892   
Tyler O'Neill2018 - 2023Y  
Don O'Riley1969 - 1970   
Frank O'Rourke1912 - 1931Y  
Jim O'Rourke1876 - 1904  Y - 1945
Jim O'Rourke1959 - 1959   
Jimmy O'Rourke1908 - 1908   
Joe O'Rourke1929 - 1929   
John O'Rourke1879 - 1883   
Mike O'Rourke1890 - 1890   
Patsy O'Rourke1908 - 1908   
Ryan O'Rourke2015 - 2019 player address 
Tim O'Rourke1890 - 1894   
Tom O'Rourke1887 - 1890   
Sean O'Sullivan2009 - 2016Yplayer address 
Dennis O'Toole1969 - 1973Yplayer address 
Jim O'Toole1958 - 1967Y  
Marty O'Toole1908 - 1914   
Rebel Oakes1909 - 1915   
Trevor Oaks2018 - 2018Yplayer address 
Prince Oana1934 - 1945   
Johnny Oates1970 - 1981Y  
Sherman Obando1993 - 1997Yplayer address 
Bailey Ober2021 - 2023Yplayer address 
Henry Oberbeck1883 - 1884   
Scott Oberg2015 - 2019Yplayer address 
Brett Oberholtzer2013 - 2016Yplayer address 
Ken Oberkfell1977 - 1992Yplayer address 
Doc Oberlander1888 - 1888   
Frank Oberlin1906 - 1910   
Wes Obermueller2002 - 2007Yplayer address 
Jim Obradovich1978 - 1978Y  
Alex Ochoa1995 - 2002Yplayer address 
Ivan Ochoa2008 - 2008Y  
Whitey Ock1935 - 1935   
Walter Ockey1944 - 1944   
Ted Odenwald1921 - 1922   
Blue Moon Odom1964 - 1976Yplayer address 
Dave Odom1943 - 1943   
Heinie Odom1925 - 1925   
Joseph Odom2020 - 2021Yplayer address 
Rougned Odor2014 - 2023Yplayer address 
Jake Odorizzi2012 - 2022Yplayer address 
Fred Odwell1904 - 1907   
Bryan Oelkers1983 - 1986Yplayer address 
Trent Oeltjen2009 - 2011Yplayer address 
Chuck Oertel1958 - 1958   
Joe Oeschger1914 - 1925Y  
Ron Oester1978 - 1990Yplayer address 
Jose Offerman1990 - 2005Yplayer address 
Rowland Office1972 - 1983Yplayer address 
Alexi Ogando2010 - 2018Y  
Cristofer Ogando2022 - 2022   
Nefi Ogando2015 - 2016   
Curly Ogden1922 - 1926   
Jack Ogden1918 - 1932   
Chad Ogea1994 - 1999Yplayer address 
Jim Oglesby1936 - 1936   
Ben Oglivie1971 - 1986Yplayer address 
Bruce Ogrodowski1936 - 1937   
Joe Ogrodowski1925 - 1925   
Seunghwan Oh2016 - 2019   
Tomo Ohka1999 - 2009Y  
Joe Ohl1909 - 1909   
Ross Ohlendorf2007 - 2016Yplayer address 
Mike Ohlman2017 - 2017Yplayer address 
Will Ohman2000 - 2012Yplayer address 
Kevin Ohme2003 - 2003Yplayer address 
Shohei Ohtani2018 - 2024Y  
Kirt Ojala1997 - 1999Yplayer address 
Augie Ojeda2000 - 2010Yplayer address 
Bob Ojeda1980 - 1994Yplayer address 
Miguel Ojeda2003 - 2006Y  
Hideki Okajima2007 - 2013Yplayer address 
Steven Okert2016 - 2023Yplayer address 
Chris Okey2022 - 2023Yplayer address 
Frank Okrie1920 - 1920   
Len Okrie1948 - 1952Y  
Jim Olander1991 - 1991Yplayer address 
Dave Oldfield1883 - 1886   
John Oldham1956 - 1956Y  
Red Oldham1914 - 1926   
Bob Oldis1953 - 1963Yplayer address 
Rube Oldring1905 - 1918   
John Olerud1989 - 2005Yplayer address 
Frank Olin1884 - 1885   
Steve Olin1989 - 1992Y  
Jared Oliva2020 - 2021Yplayer address 
Jose Oliva1994 - 1995Y  
Tony Oliva1962 - 1976Yplayer addressY - 2022
Ed Olivares1960 - 1961Y  
Edward Olivares2020 - 2023Y  
Omar Olivares1990 - 2001Yplayer address 
Al Oliver1968 - 1985Yplayer address 
Andy Oliver2010 - 2011Yplayer address 
Bob Oliver1965 - 1975Y  
Darren Oliver1993 - 2013Yplayer address 
Dave Oliver1977 - 1977Yplayer address 
Gene Oliver1959 - 1969Y  
Joe Oliver1989 - 2001Yplayer address 
Nate Oliver1963 - 1969Yplayer address 
Tom Oliver1930 - 1933   
Hector Olivera2015 - 2016Yplayer address 
Francisco Oliveras1989 - 1992Yplayer address 
Lester Oliveros2011 - 2014Y  
baseball almanac flat baseball

baseball almanac fast facts

Did you know that the all-time career home run leader whose last name begins with a letter 'O' is Mel Ott with five-hundred eleven long balls?

Baseball Almanac is pleased to present a breakdown of players born in U.S. States which begin with an 'O': Ohio with nine-hundred forty-eight, Oklahoma with two-hundred twenty and Oregon with one-hundred twelve ballplayers.

Some of the most popular players clicked on by visitors in this section are: Lefty O'Doul, Paul O'Neill, John Olerud, Tony Oliva, Rey Ordonez and Mel Ott.