Meaning A boy's name of Welsh origin, it means "Variant of Cadwaladr: War leader; battle leader." Origin of Cadwalader Welsh Popular Middle Names Pronunciation 🔊 Listen Cadwalader Similar Names Cadwaladyr Cedrych Cadel Caddell Caddock Cadwaladr Cadwallader Cadell Cailean Marcelino Year by Year Popularity of Cadwalader