Aiko

**Aiko** may refer to:
* Aiko - Female character that appeared in [Roller Coaster Murder Case](/wiki/Roller_Coaster_Murder_Case#Case_2:_Roller_Coaster_Murder_Case "Roller Coaster Murder Case").
* [aiko (artist)](/wiki/Aiko_(artist) "Aiko (artist)") - Japanese singer and songwriter that sang the theme song of Movie 27 [The Million-dollar Pentagram](/wiki/The_Million-dollar_Pentagram "The Million-dollar Pentagram").
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