The Harmon, Contemporary hotel at Las Vegas Strip, Nevada.

The Harmon was an unfinished 28-story tower at CityCenter, on the Las Vegas Strip at Harmon Avenue. Its curved glass curtain wall was clad in a mosaic of blue and lighter rectangular panels, giving a pixelated look above a darker three-story podium. It never opened and was demolished by August 2015.

Announced in October 2006 as part of CityCenter, the Foster and Partners tower was to rise 49 stories with 400 rooms and 207 condominiums. In July 2008 faulty rebar was found on floors 6 to 20; the condos were cancelled in January 2009 and the tower topped out at 28 stories. MGM removed contractor Perini in March 2010, calling it a "total loss"; demolition ran from June 2014 to August 2015.

The name came from Harmon Avenue, the intersection where the tower stood. The Light Group, which ran restaurants and nightclubs at MGM properties, was to manage it as its first hotel, aimed at young wealthy guests; chief Andrew Sasson called it a private "sanctuary" for celebrities avoiding paparazzi, with the main entrance at the rear, away from the Strip.

The Harmon never opened and was demolished between June 2014 and August 2015, so there is nothing to visit; the site at Harmon Avenue and Las Vegas Boulevard now holds the four-story 63 shopping mall, which opened in 2023. The land was sold in 2021.

The Harmon was never occupied: its empty shell served as a billboard for other CityCenter attractions, and testing during litigation showed the tower could collapse in an earthquake. Demolition ran from June 2014 to August 2015; the site was sold in 2021 and the four-story 63 mall opened there in 2023.