Downtown Las Vegas is the central business district and historic center of Las Vegas, Nevada, United States. It is the original townsite, and the Downtown gaming area was the primary gambling district of Las Vegas prior to the Strip. As the urban core of the Las Vegas Valley, it features a variety of hotel and business highrises, cultural centers, historical buildings and government institutions, as well as residential and retail developments. Downtown is located in the center of the Las Vegas Valley and just north of the Las Vegas Strip, centered on Fremont Street, the Fremont Street Experience and Fremont East. The city defines the area as bounded by I-15 on the west, Washington Avenue on the north, Maryland Parkway on the east and Sahara Avenue on the south.

Las Vegas, often known simply as Vegas, is the most populous city in the U.S. state of Nevada and the county seat of Clark County. The Las Vegas Valley metropolitan area is the largest within the greater Mojave Desert, and second-largest in the Southwestern United States. Las Vegas is an internationally renowned major resort city, known primarily for its gambling, shopping, fine dining, entertainment, and nightlife, with most venues centered on downtown Las Vegas and more to the Las Vegas Strip just outside city limits. The Las Vegas Valley as a whole serves as the leading financial, commercial, and cultural center for Nevada. According to the United States Census Bureau, the city had 641,903 residents in 2020, with a metropolitan population of 2,227,053, making it the 25th-most populous city in the United States.