Cognomen Moniac (Moniac 
) , in the world, is a very rare surname. The last name Moniac is characteristic of Germany, where it is a very rare surname, Nigeria, where it is an extremely rare surname, and Canada. Much less frequently, Moniac is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Moniac | Germany, Spain, Nigeria, Colombia, Canada |
| david moniac American military officer (1802-1836) (b. 1802) |
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| goswin moniac |
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