Meaning Variant of Kellen, the name means slim, lean, and trim. Origin of Kellan Celtic , Irish Popular Middle Names Joseph, James, Patrick, Robert, Michael, Thomas, Edward, Ewing, Francis, Frederick Pronunciation 🔊 Listen Kellan KEL-lan Similar Names Akhyar Viho Blaike Ky Kaydan Kodey Blane Keefe Farrell Melvin Year by Year Popularity of Kellan