William Lewis Cabell (January 1, 1827 – February 21, 1911) was an American engineer, lawyer, businessman, and politician who served as the 14th, 16th and 20th mayor of Dallas (1874–1876, 1877–1879 and 1883–1885).

Prior to that, he was a senior officer of the Confederate States Army who commanded infantry in the Western and Trans-Mississippi theaters of the American Civil War.

After leaving Virginia, Cabell was assigned by General Albert Sidney Johnston to serve under Major-General Earl Van Dorn, who was commander of the Trans-Mississippi Department.

He was wounded leading a charge against the Union entrenchments at Corinth and again at the Battle of Hatchie's Bridge, which left him temporarily disabled and unfit for field command.

In February 1863, he was placed in command of northwestern Arkansas and successfully recruited and outfitted one of the largest cavalry brigades west of the Mississippi.

[1] Cabell was captured in Kansas (by Sergeant Calvary M. Young of the 3rd Iowa Cavalry) during Price's Missouri Expedition on October 25, 1864, at the Battle of Mine Creek and was held as a prisoner of war at the Johnson's Island camp on Lake Erie and then at Fort Warren in Boston.

After the war, Cabell returned to Fort Smith, Arkansas, where he worked as a civil engineer and studied law at night.

During his tenure, he expanded rail access to the city, established sewer and electrical services, started a program of paving streets, and presided over a period of rapid growth.

Grandson Charles P. Cabell had a career in the United States Air Force, gaining rank as a four-star general.