Surname Londen-Smit (Londen-Smit 
) , in the world, is an extremely rare cognomen. The surname Londen-Smit is habitual in Western Europe, particularly Netherlands, where it is a very rare surname. Parts of the name also exists independently as a last name Londen, and a last name Smit.
| VARIANT | COUNTRY |
|---|---|
| Londen-Smit | Netherlands |