Tilda, Tillie, Tilly, Mattie, Milly, Millie, Milla, Tildy, Mimi, Molly.
Famous people named Matilda:
19th century American feminist Matilda Joslyn Gage; actress Tilda Swinton, whose real name is Katherine Matilda; scientist Matilda Moldenhauer Brooks; daughter of actor Heath Ledger and actress Michelle Williams.
Matilda is the title character in a famous Roald Dahl book published in 1988 that was later made into a movie. Also, “Waltzing Matilda” is a famous Australian folk song from the late 1800s.