Matidia can refer to:
Salonia Matidia, niece of the Roman Emperor Trajan and mother-in-law of Hadrian, posthumously deified under the name diva Matidia Matidia Minor or Mindia Matidia, the second daughter of Salonia Matidia, who gave her name to the Italian village of [Matigge Matidia (spider), a genus of spiders