Boy name origins & meanings Latin : Merciful Boy name variations Clement Clements Clemens Clemon Clem Clemendo Clemente Clementino Clementius Clemmie Clemmy Klemens Klement Klementos Kliment Family name origins & meanings Probably an altered spelling of Clemons, Clemans, Clemence, or any of the other like-sounding surnames derived from the personal name Clement in various European languages.