Meaning Variant of Cyril, the name means leader, master. It can also be used for girls. Origin of Cy Greek +-100%Zoom level changed to 1 Popular Middle Names Beasley, James, Willem Pronunciation 🔊 Listen Cy sy Similar Names Cirilio Cyrille Cyrillus Cadwalader Cadwaladyr Adon Cyrus Cyrill Cwrig Melanthius Year by Year Popularity of Cy