Nat \nat\ as a girl's name (also used as boy's name Nat), is a variant of Natalie (Latin), and the meaning of Nat is "birthday".

The baby name Nat sounds like Nata, Nita, Neti, Nady, Nada, Nyad, Natty and Neta. Other similar baby names are Nan, Bat, Kat, Cat, Pat, Mat and Na-.