Hyatt Regency Chicago 151 E.Wacker Chicago, Illinois 60601 USA 312-565-1234 The Hyatt Regency Chicago stands as the largest hotel in downtown Chicago and the largest Hyatt property in the world by room count. Located at 151 East Wacker Drive along the Chicago River, the property consists of two interconnected towers—the West Tower opening in 1974 and the East Tower following in 1980. After completing a major multi-million dollar renovation, the hotel features 2,032 modern guest rooms and suites showcasing sweeping views of the Chicago River, Lake Michigan, and the downtown skyline. Its prime location near The Loop, Michigan Avenue, and the Chicago Riverwalk places guests within walking distance of top city landmarks, including Millennium Park, the Magnificent Mile, and Navy Pier. The hotel is a major hub for conventions and large gatherings, offering roughly 240,000 square feet of flexible meeting and event space, including expansive ballrooms and dozens of breakout rooms. On-site amenities cater to both business and leisure travelers, featuring a 24-hour fitness center equipped with Life Fitness Symbio gear, multiple dining and drinking venues like the American Craft Kitchen & Bar, Stetsons Modern Steak + Sushi, and the bustling BIG Bar.