Last name Grondijs (Grondijs 
) , globally, is a very rare cognomen. The last name Grondijs is characteristic of Netherlands, where it is a rare surname, Portugal, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Grondijs | Netherlands, United States, Portugal |
|
louis grondijs Dutch archaeologist (1878-1961), NL (b. 1878) |
|
| hendrik frederik grondijs (b. 1881) |
|