Worldwide, Marie-Adélaïde (Marie-Adélaïde 
) is a very rare feminine first name. The first name Marie-Adélaïde is characteristic of Western Europe, particularly Luxembourg, where it is quite a rare girly name. Much less frequently, Marie-Adélaïde is the last name as well as the forename. Parts of the name also exists independently as a first name Marie, and a first name Adélaïde.
| VARIANT | COUNTRY |
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| Marie-Adélaïde | France, Luxembourg |
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marie-adélaïde de savoie Dauphine of France, FR (b. 1685) |
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marie-adélaïde de bourbon French duchess and princess, FR (b. 1753) |
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marie-adélaïde duvieux French painter (1761-1799), FR (b. 1761) |
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| marie-adélaïde barthélemy-hadot French playwright (1763-1821), FR (b. 1763) |
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| marie-adélaïde chezy FR (b. 1768) |
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| marie-adélaïde melin French catholic nun, FR (b. 1860) |
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| marie-adélaïde nielen French archivist and historian (b. 1966) |
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