Omar Ortiz, 1999 Topps; Omar played in the Padres system in 1999 and 2000.
Akinori Otsuka, 2004 Topps Total; Akinori pitched in 139 games for the Padres in 2004 and 2005.
Bob Owchinko, 1978 Topps; Bob pitched in 110 games for the Padres from 1976 to 1979.
Eric Owens, 2000 Skybox Autographics; Eric played in 294 games for the Padres in 1999 and 2000.
Jeremy Owens, 2001 Donruss; Jeremy played in the Padres system from 1998 to 2002.
Chris Oxspring, 2004 Play Ball; Chris pitched in 5 games for the Padres in 2005.
Jose Oyervidez, 2007 Bowman; Jose pitched in the Padres system from 2002 to 2007.
Hall of Famers-6
Sets of Brothers-7
Didn't play for the Padres-90