Cognomen Dalain (Dalain 
) , in the world, is a rare surname. The cognomen Dalain is characteristic of Jordan, where it is a rare surname, the Democratic Republic of the Congo, and Sweden. Measured by absolute frequency, it is the most numerous in the Democratic Republic of the Congo, Jordan, and France. Also, Dalain is the forename as well as the last name.
| philibert dalain FR (b. 1772) |
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| yvan dalain Swiss photographer, film director and writer (1927-2007), CH (b. 1927) |
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