Lucio Lombardo-Radice was an Italian mathematician. A student of Gaetano Scorza, Lombardo-Radice contributed to finite geometry and geometric combinatorics together with Guido Zappa and Beniamino Segre, and wrote important works concerning the Non-Desarguesian plane. He was also a leading member of the Italian Communist Party and a member of its central committee. He had a long professional and political friendship with German natural scientist and dissident Robert Havemann.