Meaning Gwyneth means pure, unbiased. It also means happiness. Origin of Gwyneth Welsh +-100%Zoom level changed to 1 Popular Middle Names Ann, Christine, Faith, Genevieve, Grace, Hattie, Kristin, Rachael Pronunciation 🔊 Listen Gwyneth GWIN-eth Similar Names Gwyn Gwynedd Gwynneth Glory Gela Makenna Gwenyth Nawrah Uroosa Warizah Year by Year Popularity of Gwyneth