Mattie \m(at)-tie\ as a girl's name (also used as boy's name Mattie), is a variant of Martha (Aramaic) and Matilda (Old German), and the meaning of Mattie is "lady; mistress of the house; mighty in battle".

The baby name Mattie sounds like Matti and Mattia. Other similar baby names are Hattie, Pattie, Martie and Nattie.