Tibor Radó (June 2, 1895 – December 29, 1965) was a Hungarian mathematician who moved to the United States after World War I. Radó was born in Budapest and between 1913 and 1915 attended the Polytechnic Institute, studying civil engineering.

In World War I, he became a First Lieutenant in the Hungarian Army and was captured on the Russian Front.

He escaped from a Siberian prisoner camp and, traveling thousands of miles across Arctic wasteland, managed to return to Hungary.

He taught briefly at the university and then became a research fellow in Germany for the Rockefeller Foundation.

In World War II he was a science consultant to the United States government, interrupting his academic career.