What does Leslie mean?
Also possibly "the gray castle". Place name and name of a prominent Scottish clan, first used as a given name in the 18th century. Used mainly for boys in England and Scotland. American use of Leslie is mainly for girls. The Lezlie spelling preserves the original Scottish pronunciation. Actresses Leslie-Ann Down, Lesley Ann Warren.
How popular is Leslie?
Leslie is a very prominent first name for women (#143 out of 4276, Top 3%) and also a very prominent last name for all people (#1335 out of 150436, Top 1%). (2000 U.S. Census)
Shown below is the birth name popularity of Leslie for girls. Leslie reached its apex rank of #69 in the U.S. during 1970-1979, and is at #337 presently. (2014 Birth Statistics)
Popular related forms of Leslie (#337 2 years ago) listed in the Top 1000 are Lesley, Lesli and Lesly (#963 2 years ago). Usage of these forms of Leslie was more pronounced in 2000 (average #477) and is somewhat less today (#825, 66.5% less). Leslie is more ubiquitous than the rest, and Lesly is no longer trendy. Below is a graphed comparison of the usage of Leslie and affiliated names. (2014 Birth Statistics)