ARL may refer to:
Arlington is a principal city in the U.S. state of Texas, located in Tarrant County. It is part of the Mid-Cities region of the Dallas–Fort Worth–Arlington metropolitan area, approximately 12 miles (19 km) east of downtown Fort Worth and 20 miles (32 km) west of downtown Dallas.
Arlen Specter (February 12, 1930 – October 14, 2012) was an American lawyer and politician who served as United States Senator from Pennsylvania.
Arlington is a city in northern Snohomish County, Washington, United States, part of the Seattle metropolitan area.
Arlo Davy Guthrie (born July 10, 1947) is an American folk singer-songwriter. Like his father, Woody Guthrie, he is known for singing songs of protest against social injustice.