Ryun \r-yun\ as a boy's name is a variant of Ryan (Gaelic), and the meaning of Ryun is "king".

The baby name Ryun sounds like Ryon and Ryen. Other similar baby names are Ron, Gyan, Lyon, Rien, Rain, Ren, Royan, Ronn, Roan, Rune, Rion, Rian, Ryden, Rye, Rylan and Syon.