Prusa comes from Josef Průša , the Czech 3D-printing pioneer behind Prusa Research, the company that makes Original Prusa printers. The name is from his surname, not from “Prussia” or Russia.

What it refers to

  • Prusa Research is a Czech company that produces 3D printers.
  • The “Prusa i3” and related printers are named after Josef Průša’s surname.
  • A common mix-up is hearing “Prusa” and thinking it is related to Prussia , but in 3D printing it usually points to the brand/company name.

Why people ask this

The name sounds similar to “Prussia,” so forum posts and comments often play on that confusion, but the printer brand is tied to a person and a company from the Czech Republic. If you saw “Prusia” in a post, it is probably a misspelling of Prusa.

Quick answer

So, the 3D printer name comes from Josef Průša and his company Prusa Research.