Matidia can refer to:
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Salonia Matidia
Salonia Matidia (4 July 68 – 23 December 119) was the daughter and only child of Ulpia Marciana and wealthy praetor Gaius Salonius Matidius Patruinus. Her maternal uncle was the Roman emperor Trajan. Trajan had no children and treated her lik ...
, niece of the Roman Emperor Trajan and mother-in-law of Hadrian, posthumously deified under the name ''diva Matidia''
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Matidia Minor
Mindia Matidia, also known as Matidia Minor (''Minor'' being Latin for ''the younger'', 85 – after 161) was a Roman imperial noblewoman in the early second century AD. She was related to several ancient Roman Emperors, as a great-niece to Traj ...
or Mindia Matidia, the second daughter of Salonia Matidia, who gave her name to the Italian village of
''Matidia'' (spider), a genus of spiders
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