Meaning A boy's name of Gaelic origin, it means "Slender; Fair." Origin of Kelle Gaelic , Irish +-100%Zoom level changed to 1 Popular Middle Names Pronunciation 🔊 Listen Kelle Similar Names Kaelan Kaelin Kalen Keillan Kelden Keilan Keelan Keeland Kyle Findley Year by Year Popularity of Kelle