Family name Filius (Iho 
, Filius 
, Филиус 
) , in the entire world, is quite a common last name. The surname Filius is characteristic of Netherlands, where it is quite a rare surname, Finland, and Japan. In absolute terms, it is the most numerous in Japan, Netherlands, and Nigeria. Very seldom, Filius is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Iho | Japan, Finland, United States, Nigeria, Indonesia |
| Filius | United States, Nigeria, Germany, Indonesia, Netherlands |
| Филюсь, Филиус | Russia |
| melesippus bacchii filius (b. 350) |
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| zoilus celaeni filius (b. 350) |
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| cleon cleonis filius (b. 350) |
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| philo cleonis filius (b. 350) |
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| polemaeus philippi filius (b. 350) |
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| philippus balacri filius (b. 350) |
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| draco stratonis filius (b. 350) |
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| filius sendivogius (b. 1610) |
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jürgen filius German politician, DE (b. 1960) |
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| jonathan filius researcher |
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| marieke filius researcher |
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| anika filius researcher |
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| mike filius researcher (ORCID 0000-0002-5434-8358) |
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| basquoy filius |
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| jan filius |
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