CityCenter (also known as CityCenter Las Vegas) is a 16,797,000-square-foot mixed-use, urban complex on 76 acres located on the Las Vegas Strip in Paradise, Nevada. The project was started by MGM Resorts International; Dubai World became a joint partner during the project's construction phase. It is the largest privately funded construction project in the history of the United States. The project is connected by a people mover system to adjacent MGM properties Monte Carlo Las Vegas and Bellagio Las Vegas.

With a total cost of approximately $9.2 billion,[5] CityCenter is the largest privately financed development in the United States.[6] The original cost estimate was $4 billion, but it was pushed up by rising construction costs and design changes. CityCenter opened with approximately 12,000 employees across the different projects. Vdara, Aria, Mandarin Oriental, and The Crystals opened in December 2009. The Veer Towers opened in July 2010.