Acorn can refer to any of the following treasures or other items in the Pikmin series:
- Treasure:
Armored Nut: a small acorn.
Corpulent Nut: a large acorn.
- In Pikmin Bloom:
- Acorn Decor Pikmin: A type of Decor Pikmin in Pikmin Bloom found near forests that wear acorns.
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