A brake lock for a riding mower. The brake lock may include a shaft having a first end and a second end. A blocker may be attached to the first end and a shackle may be attached to the second end. The present invention may further include a padlock having a shackle hole and an activation component that locks and unlocks the padlock. The shaft may be placed within a brake housing blocking a brake handle from moving. The shackle of the shaft may be locked within the shackle hole and may thereby lock the brake handle in a braked position.