Cognomen Knittig (Knittig 
) , in all the world, is a rare surname. The last name Knittig is habitual in Canada, where it is a rare surname, New Zealand, where it is a very rare surname, and the United States. Not in comparison with a country's population, it most frequently occurs in the United States, Canada, and Germany.
| VARIANT | COUNTRY |
|---|---|
| Knittig | Germany, United Kingdom, United States, Canada, New Zealand |