Surname Ladier (Ladier 
) , all around the world, is a rare family name. The cognomen Ladier is characteristic of France, where it is a rare surname, Colombia, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. In absolute terms, it most frequently occurs in France, Colombia, and China. Much less frequently, Ladier is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ladier | China, Colombia, United States, France, Brazil |
| eliezer ladier (b. 1873) |
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| dominique ladier French politician, FR (b. 1951) |
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| gisèle ladier French politician, FR (b. 1953) |
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