Marlin \m(a)-rlin, mar-lin\ as a boy's name (also used as girl's name Marlin), is a variant of Marland (Old English), Marlon (English) and Merlin (Welsh), and the meaning of Marlin is "land near the lake; sea fortress".

The baby name Marlin sounds like Marlinn, Marlen and Marlan. Other similar baby names are Carlin, Garlin, Harlin, Karlin, Malin, Mallin, Martin, Marvin, Marwin and Maslin.