Marlie /mar-lie/ [2 sylls.] as a name for girls. Marlie's name origin is English, and the meaning of the name Marlie is marshy meadow. Marlie is an alternate spelling of Marlee (English): also version of Marlene.Merli is a popular last name.Kreatif forms: Manlie, Marli.arlie is an unusual given name for women. Marlie is an equally uncommon surname for all people. (2000 U.S. Census). Shown below is the baby name popularity of Marlie for girls.