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 | 1A Coy (Japanese) |
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| 1st Air Div (Japanese) |
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| 1st Army (Australian) |
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| 1st Aviation Education Unit 1st Coy (Japanese) |
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| 1st Aviation Education Unit (Japanese) |
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| 1st Bn (Japanese) |
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| 1st Carrier Division 3rd Fleet (Japanese) |
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| 1st Coy (Japanese) |
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| 1st Div HQ (Japanese) |
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| 1st Division 10th Anti-aircraft Artillery Coy (Japanese) |
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| 1st Field Marine Workshop Wewak Depot (Japanese) |
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| 1st Field Shipping Engineer Construction Unit (Japanese) |
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| 1st Fleet (Japanese) |
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| 1st Guard Coy (Japanese) |
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| 1st Independent Field Searchlight Anti-aircraft Coy (Japanese) |
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| 1st Independent Garrison Bn (Japanese) |
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| 1st Independent Mixed Bde 2nd Bn 4th Coy (Japanese) |
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| 1st Independent Mixed Regt 1st Bn 4th Coy (Japanese) |
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| 1st Independent Mixed Regt 2nd Bn 4th Coy 2nd Pl 1st Sect (Japanese) |
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| 1st Independent Mixed Regt 2nd Bn 4th Coy (Japanese) |
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| 1st Independent Mixed Regt (Japanese) |
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| 1st Machine Gun Unit (Japanese) |
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| 1st Marine Engineer Bn 2nd Coy (Japanese) |
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| 1st Marine Engineer Regt 1st Coy (Japanese) |
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| 1st Marine Engineer Regt Liaison Unit (Japanese) |
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| 1st Marine Engineer Regt (Japanese) |
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| 1st Marine Engineer Workshop (Japanese) |
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| 1st Mixed Regt (Japanese) |
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| 1st Pl (Japanese) |
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| 1st Raid Brigade (Japanese) |
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