Nylah is an English name for girls. The meaning is `dark blue, deep` The name Nylah is most commonly given to American girls. What do they use in other countries? Nilay The name sounds like: Nela, Nola, Nailah, Nila, Nula Similar names are: Kylah, Lylah, Nyah Found on https://www.pregnology.com/names/girls/Nylah