Little Elm is a city in Denton County, Texas, United States, and a part of the Dallas-Fort Worth Metroplex. It is an extended suburb of Dallas. The population was 3,646 at the 2000 census. By the 2010 census, the city total had jumped to 25,898, making Little Elm one of the fastest growing municipalities in Texas since 2000 in terms of percentage. At the entrance to the city limits, population signs reflect a size of more than 31,000 as of 2013.

Little Elm has more miles of shoreline (66 miles) than any city in DFW. Lakeside amenities off Eldorado Parkway include a cable wake board park, a boat ramp, a massive swim beach, a marina, an amphitheater on the water, and many miles of trail. Other park attractions include the disc golf course at McCord Park on FM 423.

Because Little Elm is rapidly growing and expanding, most of the city is new. These new constructions not only include new parks, government buildings, and businesses, but also include a diverse housing mix of estate residential custom homes, traditional single-family housing, townhouses, duplexes, multi-family, and manufactured homes. Some of the newer subdivisions include Paloma Creek, The Towers by the Park, and Frisco Ranch.