Lynnsey \l(y)-nn-sey\ as a girl's name is a variant of Lindsay (Old English), and the meaning of Lynnsey is "Lincoln's marsh; island of linden trees".
The baby name Lynnsey sounds like Lynsey and Lynnzey. Other similar baby names are Lyndsey, Kinnsey, Lynne, Lynzey, Lyndsay, Linsey, Lindsey, Lynnet, Lynnea, Lynnae and Lynley.