Oak Lawn is a neighborhood in Dallas, Texas, defined in Dallas City Ordinance 21859 as Planned Development District No. 193, the Oak Lawn Special Purpose District. The unofficial boundaries are Turtle Creek Boulevard, Central Expressway, the City of Highland Park, Inwood Road, and Harry Hines Boulevard. It is over 12 square miles (31 km2) in area. Officially it is bounded by the City of Highland Park, the North Central Expressway, Stemmons Freeway, Woodall Rodgers Freeway, and other roads. The district is within the boundary defined by the City of Dallas law, excluding any existing planned development districts within.

Dallas is a city in the U.S. state of Texas and the most populous city in the Dallas–Fort Worth metroplex, the most populous metropolitan area in Texas and the fourth-most populous metropolitan area in the United States at 7.5 million people. It is the most populous city in and seat of Dallas County with portions extending into Collin, Denton, Kaufman, and Rockwall counties. With a 2020 census population of 1,304,379, it is the ninth-most populous city in the U.S. and the third-most populous city in Texas after Houston and San Antonio. Located in the North Texas region, the city of Dallas is the main core of the largest metropolitan area in the Southern United States and the largest inland metropolitan area in the U.S. that lacks any navigable link to the sea.