Family name Wollach (Wollach 
) , in the world, is a very rare surname. The cognomen Wollach is characteristic of Switzerland, where it is a very rare surname, Canada, and Israel. Measured by absolute frequency, it is commonest in the United States, Canada, and Switzerland.
| VARIANT | COUNTRY |
|---|---|
| Wollach | Switzerland, United Kingdom, Canada, South Africa, United States |
| pascal wollach Canadian swimmer, CA (b. 1987) |
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