Hyatt Regency Greenwich You are here: Home > Vacation and Travel >Resorts and Hotels > Hyatt Regency Greenwich Hyatt Regency Greenwich provides oversized guestrooms, fitness center, restaurants, and a great location near shops and nightlife. Web: https://www.hyatt.com Address: 1800 E Putnam Ave Old Greenwich, Connecticut 06870 United States Telephone: (203) 637-1234 Company Name: Hyatt Regency Greenwich GPS: 41.0469895, -73.5673433 Social Share: Previous Link