Karlsen \k(a)-rl-sen, kar-lsen\ as a boy's name is a variant of Carlsen (Scandinavian), and the meaning of Karlsen is "son of Carl".

The baby name Karlsen sounds like Karlson and Karlssen. Other similar baby names are Karlsson, Carlson, Carlssen, Karson, Carsen, Garlen, Karlton, Karlin and Karlan.