Morriss \m(o)-rri-ss\ as a boy's name is a variant of Maurice (Latin), and the meaning of Morriss is "dark-skinned, Moorish".
The baby name Morriss sounds like Morris, Morrice and Moris. Other similar baby names are Borris, Boriss, Ferriss, Harriss, Markiss, Morrill, Morrisson, Morrison, Morrie, Norris and Parriss.