A mechanical hackamore is a type of bitless headgear for horses where the reins connect to shanks placed between a noseband and a curb chain. The shanks and curb chain serve to increase pressure on the nose, jaw, and poll. The longer the shanks or thinner the noseband, the more severe the action of the hackamore.

Mechanical hackamores often used in competitions where there are no specific bitting rules, such as rodeo and in the show jumping arena. They are seen in endurance riding and competitive trail riding because they allow a horse to easily eat and drink without removing headgear. They are not permitted in most other horse show disciplines. They are also used by casual riders for trail riding.