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| 20th Division 1st Field Hospital (Japanese) |
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| 20th Division 2086 Unit (Japanese) |
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| 20th Division 26th Field Artillery Regt 8th Coy (Japanese) |
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| 20th Division 26th Field Artillery Regt (Japanese) |
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| 20th Division 2nd Field Hospital (Japanese) |
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| 20th Division 4th Field Hospital (Japanese) |
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| 20th Division 78th Infantry Regt 1st Coy (Japanese) |
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| 20th Division 78th Infantry Regt 1st Infantry Gun Det (Japanese) |
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| 20th Division 78th Infantry Regt 1st Infantry Gun Pl (Japanese) |
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| 20th Division 78th Infantry Regt 2nd Bn Machine Gun Pl (Japanese) |
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| 20th Division 78th Infantry Regt 2nd Coy (Japanese) |
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| 20th Division 78th Infantry Regt 6th Coy (Japanese) |
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| 20th Division 78th Infantry Regt Conscript Reserve 1st Machine Gun Coy (Japanese) |
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| 20th Division 78th Infantry Regt (Japanese) |
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| 20th Division 79th Infantry Regt 67th Coy (Japanese) |
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| 20th Division 79th Infantry Regt (Japanese) |
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| 20th Division 80th Infantry Regt (Japanese) |
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| 20th Division Finance Corps (Japanese) |
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| 20th Division Infectious Disease Prevention and Water Supply Unit Sanitation Group (Japanese) |
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| 20th Division Military Police (Japanese) |
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| 20th Division (Japanese) |
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| 20th Engineer Regt 2nd Coy 2nd Pl (Japanese) |
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| 20th Engineer Regt 2nd Coy (Japanese) |
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| 20th Engineer Regt (Japanese) |
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| 20th Field Machine Gun Coy (Japanese) |
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| 20th Home Division Medical Unit (Japanese) |
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| 20th Independent Mountain Artillery Battalion (Japanese) |
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| 20th Independent Mountain Artillery Bn 3rd Coy 2nd Pl (Japanese) |
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| 20th Independent Mountain Artillery Bn (Japanese) |
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| 20th Special Sea Duty Coy (Japanese) |
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