Meaning Callan is a Gaelic name that means 'powerful in battle' or 'war like'. Origin of Callan Celtic , Irish Popular Middle Names Thomas, Wade, Arthur, Avery, Daniel, Dustin, Edward, Flynn, Fox, Gabriel Pronunciation 🔊 Listen Callan KAH-lin Similar Names Cathal Cailean Caddock Cadwalader Cadwaladyr Cadel Cadell Caddell Marcelino Markell Year by Year Popularity of Callan