1. Abraj Kudai
Number of rooms: 10,000
The $3.5 billion Abraj Kudai in Mecca has about 10,000 rooms, 70 restaurants, 4 helipads and a section reserved for the Saudi royal family.
It is scheduled to open in 2019-2020, according to Reuters.
2. First World Hotel
Number of rooms: 7,351
First World Hotel is a three-star hotel in Resorts World Genting, Pahang, Malaysia. It has held the Guinness World Records for the largest hotel (by number of rooms) in the world since 2006.
3. THE VENETIAN & THE PALAZZO
Number of rooms: 7,117
The Venetian resort complex (including the adjacent Sands Expo Convention Center, The Palazzo Hotel and Casino Resort and future MSG Sphere Las Vegas), featured 4,049 rooms, 3,068 suites ranging in price from $169 to $10,000 per night and a 120,000-square-foot (11,000 m2) casino, is the world's third-largest hotel and largest casino.
The complex was the world's largest hotel from 2008–2015.
4. Mui Dinh Eco-Resort
Number of rooms: 7,000
The resort with 7,000 rooms will cover 1,800 acres and consist of six resort hotels, one boutique hotel, a casino, a theme park, 500 ocean-facing villas, a beach club and a mountain clubhouse, when it is finished.
5. MGM Grand Las Vegas + The Signature
Number of rooms: 6,852
The MGM Grand Las Vegas (formerly Marina and MGM-Marina) is the largest single hotel in the United States. With 6,852 rooms it is conveniently located on the Las Vegas Strip in Paradise, Nevada. It is also, behind the combined The Venetian and The Palazzo, the second-largest hotel resort complex in the United States.
The Signature at MGM Grand, a condo hotel project, is located on the MGM Grand towers. Each tower has its own private pool with cabanas and access to MGM Grand pools. Additional guest/owner amenities at The Signature include a Starbucks, meeting rooms, exercise room, bar and restaurant. Each tower has walkways including moving walkways for the connection to the MGM Grand.
6. CityCenter Las Vegas
Number of rooms: 6,790
CityCenter is a 16,797,000-square-foot (1,560,500 m2) mixed-use, urban complex on 76 acres (31 ha) situated on the Las Vegas Strip in Paradise, Nevada. The project is connected by a people mover system to adjacent MGM properties Park MGM and Bellagio Las Vegas. The "CityCenter" branding has been largely retired since 2015, with the focus instead on the Aria brand of the development's centerpiece property in names such as the "Aria Express".
7. Resorts World Las Vegas
Number of rooms: 6,583
Resorts World Las Vegas is a casino and resort currently under construction on the Las Vegas Strip in Winchester, Nevada, United States, planned to open in late 2020.
8. Sands Cotai Central
Number of rooms: 6,000
Sands Cotai Central is a casino resort on the Cotai Strip, Macau, China. It opened on 11 April 2012.
9. Tilal Al Naseem
Number of rooms: 5,383
It includes 7 Hotels - Park Inn, Four Points (1136 keys – the largest Four Points hotel globally), Millennium, Copthorne, Novotel, Ibis Styles and Adagio
10. Makkah Abraj Al Tayseer
Number of rooms: 5,154
Comprising 5,154 rooms across five towers, Holiday Inn Makkah Abraaj Al-Tayseer will cater to the growth in pilgrim visits to Makkah. Haj visit numbers are expected to more than double, growing from 2 million in 2013 to exceed 5 million by 2025.
11. Izmailovo Hotel
Number of rooms: 5000
12. Dubrovnik Pearl Hotels
Number of rooms: 5,000
13. Wynn Las Vegas + Encore Las Vegas
Number of rooms: 4750
14. Mandalay Bay + Delano + Four Seasons
Number of rooms: 4426
15. Luxor Las Vegas
Number of rooms: 4407