Aitor Osa
Aitor Osa Eizaguirre is a Spanish former road bicycle racer. He is an older brother of Unai Osa. He was involved in the Operación Puerto doping case.
Major results
;1996;1997
;1998
;1999
;2000
;2001
;2002
;2003
;2004
;2005
;2006
Grand Tour general classification results timeline
| Grand [Tour (cycling)|Grand Tour] | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 |
| General [classification in the Giro d'Italia|Giro d'Italia] | — | — | DNF | — | — | — | — | — | — |
| Tour de France | — | — | — | — | — | — | — | 50 | — |
| / Vuelta a España | 46 | 22 | 15 | 51 | 9 | 54 | 25 | — | DNF |
| — | Did not compete |
| DNF | Did not finish |