Meaning The meaning of this name comes from the Welsh form of Jane: God is gracious, God's gift, God is merciful Origin of Sian Welsh +-100%Zoom level changed to 1 Popular Middle Names Alia Pronunciation 🔊 Listen Sian SHAH:N Similar Names Sioned Emily-Jane Mary Jane Lucy Jane Jessie Jenny Janice Jane Janessa Jess Year by Year Popularity of Sian