Last name Witiuk (Witiuk 
) , globally, is a rare family name. The last name Witiuk is habitual in Canada, where it is a rare surname, New Zealand, and Brazil, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in Brazil, Canada, and the United States. Very seldom, Witiuk is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Witiuk | United States, Poland, Argentina, Canada, Brazil |
| doris witiuk American baseball player, CA (b. 1929) |
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| steve witiuk Canadian ice hockey player, CA (b. 1929) |
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