Meaning A boy's name of English origin, it means "Son of Walter." Origin of Fitz Walter English +-100%Zoom level changed to 1 Popular Middle Names Pronunciation 🔊 Listen Fitz Walter Similar Names Fitz Water Walter Fitz Adam Fitz Gerald Fitz Gibbon Fitz Gilbert Fitz Hugh Fitz James Fitz Patrick Fitz Simon Year by Year Popularity of Fitz Walter