Last name Laoust (Laoust 
) , globally, is a very rare cognomen. The last name Laoust is characteristic of Western Europe, particularly France, where it is a very rare surname. Very seldom, Laoust is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Laoust | Spain, France |
| andré-louis-adolphe laoust French artist, FR (b. 1843) |
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| emile laoust French linguist (1876-1952), FR (b. 1876) |
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| henri laoust French orientalist, FR (b. 1905) |
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