LEOS (Λέως).  Greek name meaning "a lion."  Also see Leo, and Leon.  Usage:  Czech Republic (Leoš), Greece, France.
    Leos Carax, a French film director, critic and writer.  Leoš Janáček (d. 1928), was a Czech composer. (Wiki)

    LEOS, a son of Orpheus, who immolated his three daughters for the good of Athens. (A Classical Dictionary, Lempriere, 1831)