O


Jerry Oakes, 2002 Beloit, 2003 Quad City, 2006 Clinton
Matt Oakes, 2003 West Michigan
Steve Obenchain, 2003 Kane County
Bailey Ober, 2018 Cedar Rapids
Norberto Obeso, 2018 Lansing
Riley O'Brien, 2018 Bowling Green
Wes O'Brien, 2003 2004 Lansing
Trent Oeltjen, 2002 2003 Quad City (MLB)
Eric O'Flaherty, 2004 2005 Wisconsin (MLB)
Sarkis Ohanian, 2018 Dayton
Dimas Ojeda, 2018 Clinton
Thomas Oldham, 2004 Wisconsin
Steve Oliverio, 1984 1985 Cedar Rapids
Alexis Olmeda, 2018 Burlington
Walter Olmstead, 2004 Dayton
Ryan O'Malley, 2003 Lansing
Chris O'Riordan, 2003 Clinton
Nick Orlandos, 2004 Wisconsin
Justin Olson, 2003 Quad City
Austin Orewiler, 2018 Dayton
Demi Orimoloye, 2018 Wisconsin
Tirso Ornelas, 2018 Fort Wayne
Dennis Ortega, 2018 Peoria
Oliver Ortega, 2018 Burlington
Braulio Ortiz, 2018 Wisconsin
Jesus Ortiz, 2018 Bowling Green
Omar Ortiz, 1999 2000 Fort Wayne, 2003 Clinton
Ian Ostlund, 2003 2005 West Michigan
Paul O'Toole, 2002 2003 Lansing
Riley Ottesen, 2018 Great Lakes
Juan Ovalles, 2000 South Bend, 2003 2004 Wisconsin
Johan Oviedo, 2018 Peoria
Luis Oviedo, 2018 Lake County
Jeremy Owens, 1999 Fort Wayne, 2018 Bowling Green