Lyn \l-yn\ as a boy's name (also used as girl's name Lyn), is a variant of Linn (Old English) and Lyndon (Old English), and the meaning of Lyn is "linden tree hill".

The baby name Lyn sounds like Lon, Len, Lyon, Lynn and Lin. Other similar baby names are Wyn, Ron, Alyn, Ton, Lee, Ban, Ben, Boyn, Con, Dan, Deyn, Den, Don, Wynn, Win, Ion, Ean, Van, Fin, Flyn, Glyn, Gun, Gwyn, Han, Ian, Eon, Jan, Jon, Ken, La-, Lad, Land, Lane, Layne, Lang, Le-, Leo, Lea, Le, Lem, Lenn, Lion, Lev, Leon, Les, Lou, Lew, Link, Linc, Lind, Lino, Lyron, Lyle, Loyd, Long, Lonn, Loryn, Lorn, Lot, Luc, Lunn, Olyn, Pen, Ren, Xan, Tan, Tyno, Von, Vin, Wayn and Zan.