Male first name (German, English): Leslie, Old Irish (family name as first name); leas = the garden; cuileann = holly; use of a Scottish family name as first name, the family is again back on the place name 'Lesslyn' in Aberdeenshire, this Gaelic place name may have the meaning 'garden with holly'; is both a male and a female first name in use Female first name (English, German): Leslie, Old Irish (family name as first name); leas = the garden; cuileann = holly; by a Scottish family name, which in turn goes back to a place name (for details see male form), both as male and as a female first name in use (female, especially in the U.S.)