I have an Aussie cousin called
Ainsley. We've never met, but for years there was always a
Christmas card from her family with this really unusual name in it - little me assumed it was an Australian name, & I think it might have been popular there at the time? So anyway, yup, for me it works fine as a girl's name, although it's nms.
Ainsley Julia (I think that's her mn) or maybe
JulietAinsley VictoriaAinsley ElenaAinsley MayAinsley IsobelAinsley EveAinsley FrancescaAinsley Wren