Last name Ichiyanagi (Ichiyanagi 
) , all around the world, is a very rare family name. The family name Ichiyanagi is habitual in Peru, where it is a very rare surname, Canada, where it is an extremely rare surname, and the United States. Also, Ichiyanagi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ichiyanagi | Brazil, Canada, United States, Peru, China |
Hitotsuyanagi, Itiyanagi, Ичиянаги, イチヤナギ, and 一柳
| kouhei ichiyanagi researcher |
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| yuko ichiyanagi researcher |
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| osamu ichiyanagi researcher |
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| kenji ichiyanagi researcher |
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