Surname Knazko (Knazko 
) , throughout the world, is a rare family name. The surname Knazko is habitual in Slovakia, where it is quite a rare surname, Czechia, where it is a rare surname, and New Zealand, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in Slovakia, Czechia, and Germany.
| VARIANT | COUNTRY |
|---|---|
| Knazko | Germany, Canada, Slovakia, Czechia, New Zealand |