Marnetta \m(a)-rnetta, mar-netta\ as a girl's name is a variant of Marina (Latin), and the meaning of Marnetta is "from the sea".

The baby name Marnetta sounds like Marnette, Marianda, Marinda and Maranda. Other similar baby names are Darnetta, Marketta, Marietta, Maryetta and Maretta.