M Resort

M Resort Spa Casino is a boutique hotel, spa, and casino in Henderson, Nevada. It is owned by Gaming and Leisure Properties and operated by Penn Entertainment. The property includes a 92,000 sq ft casino and a 16-story tower with 390 rooms. The M Resort is located eight miles south of the Las Vegas Strip, and is the southernmost casino in the Las Vegas Valley.

The M is named after the Marnell family. It was proposed in 2005, by Anthony Marnell III. His father's company, Marnell Corrao Associates, designed and built the M. Construction began on September 1, 2007, and the resort opened on March 1, 2009, amid the Great Recession. In 2010, Penn National Gaming purchased $860 million in debt that the resort owed, before taking over complete ownership of the property in 2011. Marnell remained as president for the next four years. In 2019, the M entered a partnership with the Las Vegas Raiders football team, which now rents out the hotel before games.