Porcia may refer to:

• Porcia gens, ancient Roman family
  • Porcia (wife of Brutus)
  • Porcia (sister of Cato the Younger)
• Valerian and Porcian laws, Roman laws
• Porcia, Friuli Venezia Giulia, a municipality in Italy
• Schloss Porcia, a castle in Spittal an der Drau, Austria

• Porcius (disambiguation)
• Portia (disambiguation)
• Porsche