Matilda \m(a)-til-da, mat(i)-lda\ as a girl's name is pronounced muh-TIL-dah. It is of Old German origin, and the meaning of Matilda is "mighty in battle". William the Conqueror's Queen Matilda (11th century) brought the name to Britain, when it was pronounced "maud". It was revived in the 18th century for awhile. A saint's name.
Matilda has 23 variant forms: Mafalda, Maffalda, Maitilde, Maltilda, Maltilde, Mat, Matelda, Mathilda, Mathilde, Matilde, Matti, Mattie, Matty, Maud, Maude, Maudie, Tilda, Tilde, Tildie, Tildy, Tilli, Tillie and Tilly.
For more information, see also the related name Madison.