The 1st Ranger Infantry Company (Airborne) was a Ranger light infantry company of the United States Army active during the Korean War. As a small special forces unit, it specialized in irregular warfare.

The United States Army Rangers are U.S. Army personnel who have served in any unit which has held the official designation of "Ranger". The term is commonly used to include graduates of the Ranger School, even if they have never served in a "Ranger" unit; the vast majority of Ranger school graduates never serve in Ranger units and are considered "Ranger qualified".