34th Infantry Division (American) [ of VI Corps, 11 Jan 1943 ]
-  [Subordinate organization not detailed in the source document.]

34th Infantry Division (American) [ of VI Corps, 29 Sep 1943 ]
-  Headquarters and Headquarters Company
-  133rd Infantry Regiment
   -  100th Infantry Battalion (Separate) [-2co]
   -  [2nd Battalion attached to Allied Force Headquarters, North Africa]
-  135th Infantry Regiment
-  168th Infantry Regiment [-1bn]
-  776th Tank Destroyer Battalion [att]
-  34th Cavalry Reconnaissance Troop (Mechanized)
-  109th Engineer Battalion
-  34th Division Artillery
   -  Headquarters and Headquarters Battery
   -  125th Field Artillery Battalion (105mm Howitzer)
   -  151st Field Artillery Battalion (105mm Howitzer)
   -  175th Field Artillery Battalion (105mm Howitzer)
   -  185th Field Artillery Battalion (155mm Howitzer)
-  109th Medical Battalion
-  2634th Ordnance Light Maintenance Company
-  2635th Quartermaster Company
-  34th Signal Company
-  Military Police Platoon
-  Headquarters and Headquarters Battery, 5th AAA Group [att]
-  105th AAA Automatic Weapons Battalion (Self-Propelled) [att] [-1bty]

34th Infantry Division (American) [ of II Corps, 9 Apr 1945 ]
-  133rd Infantry Regiment
-  135th Infantry Regiment
-  168th Infantry Regiment
-  34th Cavalry Reconnaissance Troop, Mechanized
-  34th Division Artillery
   -  125th Field Artillery Battalion
   -  151st Field Artillery Battalion
   -  175th Field Artillery Battalion
   -  185th Field Artillery Battalion
-  109th Engineer Combat Battalion

34th Infantry Division (American) [ of IV Corps, 23 Apr 1945 ]
-  Headquarters, 34th Infantry Division
-  Special Troops
   -  Headquarters, Special Troops
   -  Headquarters Company, 34th Infantry Division
   -  734th Ordnance Light Maintenance Company
   -  34th Quartermaster Company
   -  34th Signal Company
   -  Military Police Platoon
-  34th Infantry Division Band
-  34th Cavalry Reconnaissance Troop, Mechanized
-  109th Engineer Combat Battalion -[3co}
-  109th Medical Battalion [-3co]
-  34th Division Artillery
   -  Headquarters and Headquarters Battery
   -  185th Field Artillery Battalion (155mm Howitzer)
-  133rd Regimental Combat Team
   -  133rd Infantry Regiment
   -  151st Field Artillery Battalion (105mm Howitzer)
   -  A Company, 109th Engineer Combat Battalion
   -  A Company, 109th Medical Battalion
-  [135th Regimental Combat Team attached to Fifth Army]
-  168th Regimental Combat Team
   -  168th Infantry Regiment
   -  175th Field Artillery Battalion (105mm Howitzer)
   -  C Company, 109th Engineer Combat Battalion
   -  C Company, 109th Medical Battalion
-  34th Counter Intelligence Detachment [att]