Lyndsie \l(y)-nd-sie, lyn-dsie\ as a boy's name (also used as girl's name Lyndsie), is a variant of Lindsay (Old English), and the meaning of Lyndsie is "Lincoln's marsh; island of linden trees".

The baby name Lyndsie sounds like Lyndsey, Lyndsay and Lindsee. Other similar baby names are Lyndale, Landis, Landin, Lyndell, Lyndall, Lyndon, Lynden, Lindlee, Lindsy and Lindsey.