Suggest an update Name* Categories* State* Locality* ZIP* Street address* Phone* Website* Company description* Visit the hotel Dunkin' Donuts, which is in the state Connecticut (CT), city Niantic. Our hotel can be found at 255 Main St, Niantic, CT 06357-3114. Great deals on best and cheap hotels. Your comments* (not for publishing) * — Required information Dunkin Donuts/255 Main St - Niantic - Connecticut (CT) ← View details 255 Main St, Niantic, CT 06357-3114, Niantic, Connecticut (CT) +1 860-739-1910