Pet accessory bag coupleable with leash in multiple different configurations

Embodiments described herein include a pet accessory bag coupleable with a leash in multiple different configurations and a system including the pet accessory bag and leash. In one configuration, the pet accessory bag is coupled to a handle portion of the leash for walking a pet. In another configuration. The leash forms a strap enabling the pet accessory bag to be worn as a cross-body bag.