516th
# 516th

516th may refer to:

* 516th Aeronautical Systems Wing, wing of the United States Air Force assigned to Wright-Patterson Air Force Base, Ohio
* 516th Air Defense Group, disbanded United States Air Force organization
* 516th Infantry Regiment (United States) ("Bastogne Bulldogs"), a glider-borne regiment of the U.S. 101st Airborne Division
* 516th Signal Brigade (United States), forward based major subordinate operations and maintenance command of the 311th Signal Command
* 516th Strategic Fighter Squadron, inactive United States Air Force unit
