The Ritz Carlton Residences @ MahaNakhon Tower (Thai: มหานคร) is a mixed-use skyscraper in the Silom/Sathon central business district of Bangkok, Thailand. It was completed in December 2016. It features the unconventional appearance of a glass curtain walled square tower with a cuboid-surfaced spiral cut into the side of the building. Following transfer of the first residential units in April 2016, at 314.2 metres (1,031 ft) with 77 floors, it was recognized as the tallest building in Thailand on 4 May 2016 by the Council on Tall Buildings and Urban Habitat (CTBUH). The entire tower features The 6 Star Ritz Carlton hotel, retail and 200 units of The Ritz-Carlton Residences. Units for sale at the residences are priced between around US$1,100,000 to US$17,000,000, making it one of the most expensive condominiums in Bangkok.
In September 2014, The Ritz-Carlton Residences, Bangkok at MahaNakhon, was named “Best Luxury Condo Development 2014 (Bangkok)” at the Thailand Property Awards. In October 2014, The Ritz-Carlton Residences, Bangkok at MahaNakhon was named “Best Thailand Development 2014” and “Best Luxury Condominium Southeast Asia 2014” at the SE Asia Property Awards.
In 2015, MahaNakhon was recognised at the Asia-Pacific Property Awards, winning three major awards including Best Mixed Use, Best Residential, and Best Residential Highrise.