Cognomen Lossier (Lossier 
) , around the world, is a very rare surname. The cognomen Lossier is habitual in Switzerland, where it is a rare surname, Chile, where it is a very rare surname, and Germany.
| VARIANT | COUNTRY |
|---|---|
| Lossier | Switzerland, France, Chile, Thailand, Germany |
| edouard lossier painter and illustrator, 1852–1925, CH (b. 1852) |
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jean-georges lossier Swiss writer (1911-2004), CH (b. 1911) |
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| henry lossier swiss civil engineer, CH (b. 1878) |
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