Katelijn \k(a)-teli-jn, kat(e)-lijn\ as a girl's name is a variant of Catherine (Greek), and the meaning of Katelijn is "pure".
The baby name Katelijn sounds like Katelin and Katelinn. Other similar baby names are Katelynn, Katelyn, Katelan, Catelinn, Katalin, Katlin and Kateline.