Meaning and name origin
Maddie \m(ad)-die\ as a girl's name is of Hebrew and Old English origin, and the meaning of Maddie is "woman from Magdala; maiden; young, unmarried woman". Maddie is a variant of Madeline (Hebrew): variant of Madeleine, which is the French version. Also a variant of Maida (Old English): maida and its diminutive form Maidie were used somewhat in the 19th century.
Maddie is a somewhat popular first name for females (#4223 out of 4276, Top 99%) but an uncommon surname or last name for all people (2000 U.S. Census).