Namesakes
Fictional Characters from Books:
1 character, 1 hero
Matilda Price 1839 Nicholas Nickleby 
Matilda Wormwood 1988 Matilda
Fictional Characters from Song Titles:
3 characters
(character) Matilda 1895 Waltzing Matilda
(character) Matilda 1967 Matilda Mother
(character) Matilda 2012 Matilda
Notable Activists and Revolutionaries:
1 activist
(activist) Matilda Joslyn Gage 1826-1898
Notable Actors and Entertainers:
2 actors
Clara Kimball Young (middle name Matilda) 1890-1960
Tilda Swinton 1960-
Notable Artists:
1 painter
Fanny Brate (middle name Matilda) 1861-1940
Olympic Medalists:
1 gold
(gold) Lida Howell 1904 archery - Columbia round; archery - national round; archery - team round
Oscar Award Winners:
1 actress
(actress) Tilda Swinton 2008 Michael Clayton
Other Royalty:
1 princess
Viktoria Luise of Prussia (middle name Matilda) 1892-1980 Prussia
Saints:
4 saints
Saint Matilda of Ringelheim 895-968
Saint Mechtildis of Edelstetten (a.k.a. Matilda) ?-1160
Saint Mafalda (a.k.a. Matilda) 1204-1252
Saint Mechtildis of Helfta (a.k.a. Matilda) 1241-1298