Georg Arthur Constantin Friedrich Zander, was a Baltic German pioneer of rocketry and spaceflight in the Russian Empire and the Soviet Union. He designed the first liquid-fueled rocket to be launched in the Soviet Union, GIRD-X, and made many important theoretical contributions to the road to space.

Baltic Germans are ethnic German inhabitants of the eastern shores of the Baltic Sea, in what today are Estonia and Latvia. Since their resettlement in 1945 after the end of World War II, Baltic Germans have markedly declined as a geographically determined ethnic group in the region.