Meaning Of Celtic origin meaning 'disciple of Saint Columba'. Origin of Kallum Celtic , Irish +-100%Zoom level changed to 1 Popular Middle Names Michael Pronunciation 🔊 Listen Kallum KAL-um Similar Names Kalum Malcolm Callam Kalem Callom Calium Malcom Makolm Mealcoluim Maklolm Year by Year Popularity of Kallum