| 111th Attack Squadron | |
|---|---|
 111th Attack Squadron General Atomics MQ-1B Predator 07-3224 | |
| Active | 1917–present |
| Country |  United States |
| Allegiance |  Texas |
| Branch |  Air National Guard |
| Type | Squadron |
| Role | Attack/ISR |
| Part of | Texas Air National Guard |
| Garrison/HQ | Ellington Field Joint Reserve Base, Houston, Texas |
| Nickname(s) | The Ace in the Hole Squadron |
| Tail Code | Houston (1989–1996) EF (1996–2008) TX (2008–Present) |
| Engagements | World War I World War II Korean War War on Terror |
| Commanders | |
| Current commander | Lt Col Brian Jackson |
| Insignia | |
| 111th Fighter Interceptor Squadron emblem |  |
The 111th Attack Squadron (111 ATKS) is a unit of the Texas Air National Guard 147th Attack Wing located at Ellington Field Joint Reserve Base, Houston, Texas. The 111th is equipped with the General Atomics MQ-9 Reaper unmanned aerial vehicle (UAV).
The squadron is a descendant organization of the World War I 111th Aero Squadron, established on 14 August 1917. It was reformed on 29 June 1923, as the 111th Observation Squadron, and is one of the 29 original National Guard Observation Squadrons of the United States Army National Guard formed before World War II.
The 111th Attack Squadron is the oldest unit of the Texas Air National Guard, with over 95 years of service to the State of Texas and the United States.