Kellan \k(el)-lan\ as a girl's name (also used as boy's name Kellan), is a variant of Kellen (Gaelic), and the meaning of Kellan is "slender; fair".

The baby name Kellan sounds like Kallan, Keelan and Kellyn. Other similar baby names are Keela, Kalla, Callan, Keelin, Dyllan, Dillan, Ellan, Fallan, Geelan, Gillan, Hellen, Jillan, Kerran, Keyla, Kaylan, Kalan, Kailan, Keala, Keelyn, Keila, Keilah, Keilana, Keilani, Kelda, Kellda, Kelila, Kelulah, Kelula, Kelly, Kellye, Kellyann, Kellina, Kellie, Kelli, Kelley, Kelleen, Kellee, Kelsa and Nollan.