|Venue CODE II Gymnasium|
Competitors 10 from 10 nations
|Dates October 28|
The men's 66 kg competition of the judo events at the 2011 Pan American Games in Guadalajara, Mexico, was held on October 28 at the CODE II Gymanasium. The defending champion was João Derly of Brazil.
All times are Central Standard Time (UTC-6).
Two bronze medals were awarded.