Cognomen Onoriu (Onoriu 
, Гонорій 
) , throughout the world, is a rare surname. The surname Onoriu is habitual in Romania, where it is a rare surname, Hungary, where it is a very rare surname, and Mexico, where it is an extremely rare surname. Also, Onoriu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Onoriu | Romania, Greece, Hungary, South Africa, Italy |
| Гонорій | Ukraine |
| onoriu rațiu botanist (1927-1986) (b. 1927) |
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| ion onoriu RO (b. 1937) |
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| daniel onoriu (b. 1978) |
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