Linden tree island
Lindzy is a modern phonetic spelling of the English surname Lindsay. It originally derived from the region of Lindsey in Lincolnshire, which referred to an island or wetland area populated by linden trees.
Less common today
Lindzy isn't in the latest US Top 1000. It last peaked at #4,986 in 1991.
US births per 5-year period, 1990βpresent (SSA data).