Surname Harscouët (Harscouët 
) , in the world, is a very rare cognomen. The family name Harscouët is habitual in Western Europe, particularly France, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Harscouët | France |
| raoul harscouët French bishop, FR (b. 1874) |
|
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| luc harscouët de saint george French diplomat, FR (b. 1940) |
|