Myrtis \m(y)-rtis, myr-tis\ as a girl's name is a variant of Myrtle (Latin). See for meaning of Myrtis.
The baby name Myrtis sounds like Mertis and Myrtice. Other similar baby names are Myrtie, Artis, Maris, Meris, Marris, Martie, Marti, Myrta and Mirtie.