
MGM National Harbor
Best for nightlife, gaming, and a full-service resort experience with a large spa and riverside setting.
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MGM National Harbor is a 5-star riverside casino resort in National Harbor that mixes gaming, restaurants, a large spa, and a seasonal rooftop pool — for travelers who want resort amenities near DC. Grand Hyatt Washington is a large 4-star full-service convention hotel in downtown DC — for meeting planners and visitors who want a central location steps from CityCenterDC and cultural sites.
Updated · about 8–9 miles apart (National Harbor to downtown DC)

Best for nightlife, gaming, and a full-service resort experience with a large spa and riverside setting.

Best for business travel, conferences, and visitors who want immediate access to downtown DC attractions and convention center space.
When MGM National Harbor wins: Choose MGM National Harbor if you want a resort-style stay with casino gaming, a destination spa, many on-site restaurants and bars, riverfront views, and a seasonal rooftop pool.
When Grand Hyatt Washington wins: Choose Grand Hyatt Washington if you need a centrally located hotel for meetings or sightseeing in downtown DC, easy walkable access to attractions, and large contiguous meeting space near the Walter E. Washington Convention Center.
Bottom line: MGM National Harbor is a resort for entertainment-focused stays just outside DC; Grand Hyatt Washington is a city convention hotel for planners and tourists who prioritize location and meeting capacity.
| Category | MGM National Harbor | Grand Hyatt Washington |
|---|---|---|
| Overall vibe | Resort and casino with nightlife, dining variety, and riverfront leisure | Large full-service urban convention hotel, business-oriented |
| Location | National Harbor / Oxon Hill waterfront, outside DC (riverfront) | Downtown Washington, steps from CityCenterDC and cultural sites |
| Size (rooms) | 308 rooms (including 74 suites) | 902 guestrooms |
| Opened / age | Opened 2016 | Not published |
| Pools | Seasonal outdoor rooftop pool (Memorial Day–Labor Day; kids allowed) | Not published |
| Restaurants & bars | 12–15+ venues including Voltaggio Brothers Steak House, National Market, Diablo's Cantina, BetMGM Sportsbook & Lounge | 2 restaurants, 1 bar/lounge (including Oribu; room service limited hours) |
| Spa / wellness | The Spa & Salon — 27,000 sq ft, 11 treatment rooms, hydrotherapy (adults only) | Not published |
| Meeting & event space | About 50,000 sq ft; largest rooms include a 3,000-seat theater and multiple ballrooms (largest ~16,137 sq ft) | 44,000 sq ft conference space (large downtown meeting capability) |
| Parking | Self and valet parking for a fee; height restrictions apply | Self parking (surcharge) and valet (surcharge); covered parking noted |
| Family policy / age | Casino-centric and geared to adults, but children may stay in rooms and use pool; 21+ to check in and gamble | All-ages property; children 18 and younger stay free with parent/guardian |
MGM National Harbor sits on the National Harbor waterfront in Oxon Hill, Maryland, minutes from attractions along the Potomac.
Choose MGM for a riverside resort experience and nearby National Harbor attractions outside the core of DC.
Grand Hyatt Washington sits in downtown DC, within walking distance of CityCenterDC, Ford's Theater, and the Walter E. Washington Convention Center.
Choose Grand Hyatt Washington for convenience and walkable access to downtown DC and convention facilities.
MGM National Harbor offers 308 rooms across 23 floors, including 74 suites and a small set of defined room types.
MGM's room inventory is smaller but focused on resort and suite options with scenic waterfront orientation.
Grand Hyatt Washington has a large inventory (902 guestrooms) with many room variations and club/club-access options.
Grand Hyatt is a practical choice when you need many room types and large room blocks in the city center.
MGM National Harbor has a long list of on-site restaurants and bars covering casual to high-end dining.
MGM is better if you want a high variety of on-property dining and late-night options tied to the casino scene.
Grand Hyatt Washington lists two restaurants and one bar/lounge, with cook-to-order breakfast available for a fee.
Grand Hyatt provides a compact in-house dining program and relies on its downtown location for more choices.
MGM National Harbor features a seasonal rooftop outdoor pool with river views and private day pod cabanas.
If a summer rooftop pool and cabana experience matter, MGM offers a clear resort amenity.
Grand Hyatt Washington's supplier listing does not publish a pool amenity.
Grand Hyatt's strength is downtown access and meeting space rather than a resort-style pool.
MGM pairs a large Clarins spa with nightclub-style nightlife and a 3,000-seat theater for shows.
MGM is a better fit for travelers who want a dedicated spa and evening entertainment on-site.
Grand Hyatt Washington offers a 24-hour fitness center and a business-focused set of services; nightlife is the surrounding downtown scene.
Grand Hyatt suits guests who prioritize fitness, business services, and immediate access to downtown nightlife rather than on-site shows or a large spa.

MGM National Harbor — on-site casino, sportsbook lounge, bars, and theater entertainment.

Grand Hyatt Washington — steps from CityCenterDC, Ford's Theater, and close to the convention center.

MGM National Harbor — The Spa & Salon is a large Clarins-partnered facility with hydrotherapy and many treatment rooms.

Grand Hyatt Washington — 44,000 sq ft of conference space and 902 guestrooms for big downtown events.
Grand Hyatt Washington is ideal for downtown conferences with 44,000 ft² of meeting space and 902 guestrooms; MGM also supports large groups but is outside downtown and combines meetings with resort/casino venues.
Yes — MGM allows children to stay in rooms and the seasonal rooftop pool is open to guests of all ages.
Grand Hyatt Washington — about 0.5 mi (0.8 km) from the convention center; MGM is in National Harbor outside central DC.
No — The Spa & Salon at MGM National Harbor does not permit guests under 18.
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