Family name Vethaak (Vethaak 
) , in the world, is a very rare surname. The surname Vethaak is habitual in Netherlands, where it is a rare surname, Australia, where it is a very rare surname, and Canada.
| VARIANT | COUNTRY |
|---|---|
| Vethaak | United Kingdom, Netherlands, Australia, Canada |
| philippus vethaak cyclist, NL (b. 1914) |
|
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| dirk vethaak business executive, NL (b. 1918) |
|