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Last Name Onnis

What is the origin of the last name Onnis?

The surname "Onnis" is of Italian origin and is derived from the personal name Onnio, which is of uncertain etymology. It may be a variant of the name Unnio, which is of Germanic origin. The surname Onnis is most commonly found in the regions of Sardinia and Piedmont in Italy.

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The meaning and origin of the last name Onnis

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Geographical distribution of the last name Onnis

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Variants and spellings of the last name Onnis

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About the author :
NomOrigine Team
NomOrigine Team
Passionate about genealogy, name history, and linguistics, we have been analyzing the origins of names for over 3 years. Our content is based on verified historical, etymological, and statistical data.
Last updated : 12 June 2025

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