Gregor High School is a minor school in Girls und Panzer that appears only in supplemental material, did not participate in the 63rd National High School Sensha-Dou Tournament.
The origins of this Czech-themed school started when Japanese painted kitchenware and pottery first became popular as an export item to europe, and Czech merchants came to Japan to set up a depot for the manufacture and shipping of goods to be sold to Europe. The pottery factories they built eventually became the future Gregor High School. The Bushido memorabillia and things influenced the Czechs and some came to Japan to learn more. Gregor treats the Japan-Czech international cultural exchange as one of their most important subjects. And a part of that includes Senshado.
- Could be named after the Czech tank commander Josef Gregor who was part of the 1st Czechoslovak Tank Brigade in USSR.