Hans Kohn (Hebrew: הַנְס כֹּהן‎, September 15, 1891 - 1971) was a philosopher and historian. Born in Habsburg Prague, he was captured as a prisoner of war during World War I and held in Russia for five years. In the following years he lived in Paris and London working for Zionist organizations and writing.

He moved to Palestine in 1925 but visited the United States frequently, eventually immigrating in 1934 to teach modern history at Smith College in Northampton, Massachusetts. From 1948 to 1961 he taught at City College of New York. He also taught at the New School for Social Research, Harvard Summer School.

He wrote numerous books and publications, primarily on the topics of nationalism, pan-Slavism, German thought, and the Jewish religion, and was an early contributor to the Foreign Policy Research Institute in Philadelphia, Pennsylvania. He died in Philadelphia in 1971.

Literary works

• The idea of nationalism: a study in its origins and background, 1944
• Pan-Slavism: its history and ideology, 1953
• The Habsburg Empire, 1804-1918, 1961
• Living in a World Revolution: My Encounters with History, Simon and Schuster, New York, 1964