Dyess Air Force Base (AFB) (IATA: DYS, ICAO: KDYS, FAA LID: DYS) is a United States Air Force base located approximately 7 miles (11 km) southwest of Abilene, Texas.

The host unit at Dyess is the 7th Bomb Wing (7 BW) assigned to the Global Strike Command Eighth Air Force. The 7 BW is one of only two B-1B Lancer strategic bomber wings in the United States Air Force, the other being the 28th Bomb Wing at Ellsworth Air Force Base, South Dakota.

Dyess AFB was established in 1942 as Abilene Army Air Base (AAB). It is named in honor of Texas native and Bataan Death March survivor Lieutenant Colonel William Dyess. The 7th Bomb Wing is commanded by Colonel David Benson. The Vice Commander is Colonel Michael Miller and the Command Chief Master Sergeant is Chief Master Sergeant Aaron D. Bennett.

Dyess AFB is a 6,409-acre (25.94 km2) base with over 13,000 military and civilian people. It is home to the 7th Bomb Wing, which consists of four groups. Two squadrons, the 9th and 28th Bomb Squadrons, fly the B-1B. In addition, the 28th Bomb Squadron is the Air Force schoolhouse for all B-1B aircrew members.

The base is located in the southwest corner of Abilene, TX and is about 200 miles (320 km) west of Dallas. The base employs more than 5,000 people, making it the single largest employer in the area. Dyess AFB has nearly 200 facilities on base, plus 988 units of family housing, and encompasses 6,117 acres (24.75 km2) of land. The base has a total economic impact of nearly $310 million yearly on the local community.