Short answer: yes, in many cities—but not every bin is the same. You’ll often find urban trash cans that accept both regular trash and bagged dog waste. These are usually general-waste bins along sidewalks, in parks, or near dog-friendly areas. If a bin is marked “general waste,” “trash,” or “landfill,” a securely tied dog waste bag can normally go in with everyday rubbish. Some places also provide dedicated pet-waste bins, and it’s best to use those when they’re available.
The important part is to check the signage. Dog waste should not go into recycling or compost bins, and you shouldn’t leave bags on top of or beside the can. If there’s no general-waste bin nearby, carry the bag until you find one. Local rules vary, so when in doubt, follow the posted instructions or check your city’s waste guidance. In short, dual-use public trash cans are common, but reading the label is the safest way to dispose of dog waste properly.