Azle ( AY-zəl) is a small city west of Fort Worth in Parker and Tarrant Counties in the U.S. state of Texas. As of the 2010 census, the city population was 10,947.
Azle is the home of the Azle Marching Green Pride marching band and the Fighting Azle Hornets.
Azle is on State Highway 199, 16 miles (26 km) northwest of downtown Fort Worth, in the northwest corner of Tarrant County; the town extends partly into Parker and Wise Counties.
According to the United States Census Bureau, the city has a total area of 8.8 square miles (22.9 km2), of which 8.8 square miles (22.8 km2) is land and 0.015 square miles (0.04 km2), or 0.20%, is covered by water.
The first recorded settlement at the site occurred in 1846, when James Azle Steward, a young doctor, moved into a log cabin built by a Dutchman named Rumsfeldt. Other settlers came and established themselves near the local streams, Ash Creek, Silver Creek, and Walnut Creek. Steward helped establish the first cemetery, Ash Creek. The oldest graves there are those of Dave Morrison (1849–1874) and W. P. Gregg (1833–1874). The first post office opened in 1881, and the town took the name of O'Bar, in honor of the man who obtained the postal service. A short time later in 1883, the name was changed to Azle at the request of Steward, who donated the land for a townsite. The community's economy was based on agriculture.