Linden tree island or marshlands
Lindsi is a modern spelling variation of Lindsey. It originates from an English surname which referred to the Kingdom of Lindsey in Lincolnshire, derived from the Old English for linden tree and the Old Norse for island.
Less common today
Lindsi isn't in the latest US Top 1000. It last peaked at #3,008 in 1990.
US births per 5-year period, 1990βpresent (SSA data).