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 Cadwaladr Cedrik Cadawg Caddell Cadellin Cadwaladyr Cadel Markel Manawydan Caddaham Year by Year Popularity of Cadwalader