Hyatt Regency O'Hare Chicago

Boasting 15,045 sq ft of event space, the centerpiece is the stunning 9,380 sq ft Rosemont ballroom, featuring 18 ft ceilings, striking architectural lighting, and a private foyer. Designed for flexibility, the ballroom is flanked by two adjoining rooms that can seamlessly expand your footprint for larger gatherings. Host up to 1,500 guests for a reception or 400+ for a seated dinner. Just steps away, a 3,500 sq ft foyer offers an ideal setting for cocktail hours.

With over 30k sq ft of elegant event space, our Grand Ballroom is the perfect canvas for your wedding. Beneath stunning lighting and soaring 23 ft ceilings, you can host up to 2,500 guests for dinner and up to 5,000 for a reception. The ballroom can be transformed into up to 8 distinct spaces—ideal for ceremonies, receptions, and everything in between. Outside the ballroom, Grand Foyer offers natural light from floor-to-ceiling windows—perfect for welcoming guests with a cocktail hour.

Perfect for smaller weddings with up to 135 guests, our beautifully designed Conference Center offers a unique space to celebrate your day. This unique bi-level venue features a stunning two-story foyer filled with natural light—an inviting space for cocktails, photos, or welcoming your guests. A grand dome ceiling adds a sense of romance and charm to your intimate dinner and reception, creating the ideal backdrop for heartfelt toasts, shared memories, and your first dance.

Perched atop the hotel, this stunning space is wrapped in floor-to-ceiling windows, offering panoramic views of the Chicago skyline and O’Hare International Airport. Designed to impress, the venue features a built-in bar and striking architectural details that create a one-of-a-kind atmosphere—equally suited for an intimate dinner or unforgettable cocktail hour.