There are Guinea Pig Clubs or Pet Clubs that hold regular shows for showing guinea pigs.

These shows give guinea pig owners a chance to meet and talk to other owners and breeders as well as compete in the show.

Most guinea pig shows have classes for particular varieties of guinea pigs where the guinea pigs are judged against a standard for that variety. Shows often include a pets class where guinea pigs are judged on their overall condition and temperament enabling any guinea pig owner to participate in the guinea pig show with their guinea pig.