Last name Calliauw (Calliauw 
) , across the world, is a rare surname. The surname Calliauw is characteristic of Belgium, where it is quite a rare surname, Canada, where it is a very rare surname, and France.
| VARIANT | COUNTRY |
|---|---|
| Calliauw | United Kingdom, Canada, France, Belgium |
|
luc calliauw Belgian physician and university teacher, BE (b. 1928) |
|
| koen calliauw Belgian journalist and politician (1942-2014), BE (b. 1942) |
|