Dyllan \d(yl)-lan\ as a boy's name (also used as girl's name Dyllan), is a variant of Dylan (Welsh), and the meaning of Dyllan is "son of the sea".

The baby name Dyllan sounds like Dallan, Dyllon and Dillan. Other similar baby names are Allan, Callan, Cullan, Dallin, Dallon, Dallen, Dalan, Dallas, Daylan, Daelan, Declan, Delman, Dillon, Dylon, Dillen, Dilan, Dolan, Dylonn, Gillan, Kellan, Kylan, Mellan, Nollan, Rollan, Rylan, Tallan and Wylan.