Surname Tomczynski (Tomczynski 
) , in the world, is a rare cognomen. The family name Tomczynski is characteristic of Poland, where it is a rare surname, Israel, and Australia, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in Poland, Israel, and the United Kingdom. More frequently, Tomczynski is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tomczynski | Australia, Germany, Poland, United Kingdom, Israel |