Quinlan is a rural city in the southern part of Hunt County, Texas, United States, within the Dallas–Fort Worth metropolitan area. As of the 2010 census it had a population of 1,394. It is 5 miles (8 km) west of Lake Tawakoni.
The city of Quinlan began about 1892 as a stop on the Texas Midland Railroad, which was owned by famed bond investor Hetty Green, called by the contemporary press "The Witch of Wall Street". The railroad was operated by her son, Edward H.R. Green. Texas Midland became a subsidiary of the Houston & Texas Central Railroad, and the city which built up around a depot constructed here between the towns of Roberts and Greenville was named Quinlan in honor of George A. Quinlan, the general manager of the Houston & Texas Central railroad.
The Post Office opened in Quinlan in 1894, and by 1896 the city was incorporated. Harry Ford served as first Mayor. Quinlan soon became the center of a large agricultural area. Providing a railroad shipping point for growers of cotton and other crops.