Iliana \i-lia-na\ as a girl's name is pronounced ee-lee-AHN-ah. It is of Greek origin, and the meaning of Iliana is "Trojan". The poetic name for the ancient city of Troy was "Ilion". Ileanna has been used by the Greek royal family. See also Liana. Actress Illeana Douglas, granddaughter of actor Melvyn Douglas.