Family name Loopstok (Loopstok 
) , all around the world, is a very rare cognomen. The cognomen Loopstok is characteristic of Aruba, where it is quite a common surname, Netherlands, where it is a very rare surname, and Venezuela, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Loopstok | United States, Aruba, Venezuela, Netherlands, Chile |