Merlinn \m(e)-rli-nn, mer-linn\ as a boy's name is a variant of Merlin (Welsh), and the meaning of Merlinn is "sea fortress".

The baby name Merlinn sounds like Marlinn and Merlynn. Other similar baby names are Merwinn, Berlin, Marlin, Marlonn, Merwin, Mervin, Mellin, Merlyn, Merlen, Mervynn, Morfinn and Verlin.