Cognomen Larthe (拉斯 
, Larthe 
) , all over the world, is a rare surname. The surname Larthe is characteristic of France, where it is a very rare surname, the United Kingdom, and China, where it is an extremely rare surname. More frequently, Larthe is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 拉斯 | China |
| Larthe | France, United Kingdom, United States |
| louis phillippe larthe (1908-1994) (b. 1908) |
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| laura larthe Peerage person ID=676223 (b. 1954) |
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| joseph larthe |
|