MLB Players - O

Peter O'Brien

Riley O'Brien

Mike O'Connor

Darren O'Day

Eric O'Flaherty

Brian O'Grady

Chris O'Grady

Ryan O'Hearn

Logan O'Hoppe

Brian O'Keefe

Jack O'Loughlin

Shawn O'Malley

Tyler O'Neill

Ryan O'Rourke

Sean O'Sullivan

Trevor Oaks

Bailey Ober

Scott Oberg

Brett Oberholtzer

Bryce Montes de Oca

Christian Montes De Oca

Iván Ochoa

Joseph Odom

Rougned Odor

Jake Odorizzi

Trent Oeltjen

Alexi Ogando

Cristofer Ogando

Nefi Ogando

Shinnosuke Ogasawara

Seunghwan Oh

Tomo Ohka

Pierson Ohl

Ross Ohlendorf

Mike Ohlman

Will Ohman

Shohei Ohtani

Augie Ojeda

Hideki Okajima

Steven Okert

Chris Okey

Jared Oliva

Edward Olivares

Andy Oliver

Darren Oliver

Héctor Olivera

Lester Oliveros

Miguel Olivo

Adam Oller

Ray Olmedo

Edgar Olmos

Scott Olsen

Garrett Olson

Matt Olson

Reese Olson

Tyler Olson

Mike Olt

Brian Omogrosso

Jorge Oña

Logan Ondrusek

Magglio Ordóñez

Nate Orf

Paulo Orlando

Jonathan Ornelas

Tirso Ornelas

Pete Orr

Kaleb Ort

Anthony Ortega

José Ortega

Oliver Ortega

Rafael Ortega

Danny Ortiz

Joe Ortiz

Joey Ortiz

Luis Ortiz

Ramón Ortiz

Russ Ortiz

Daniel Ortmeier

Eric Orze

Josh Osich

Franquelis Osoria

Alejandro Osuna

José Osuna

Roberto Osuna

Corey Oswalt

Roy Oswalt

Michel Otañez

Dan Otero

Adam Ottavino

Glenn Otto

James Outman

Josh Outman

Lyle Overbay

Connor Overton

Dillon Overton

Johan Oviedo

Juan Carlos Oviedo

Luis Oviedo

Hunter Owen

Henry Owens

Jerry Owens

Rudy Owens

Tyler Owens

Chris Owings

Micah Owings

Marcell Ozuna

Pablo Ozuna