Porphyry (Greek: "purple-clad") may refer to:

• Porphyry (geology), a very hard red, green, or purple igneous rock
• Porphyry (philosopher) (c. 232–c. 305), a Neoplatonic philosopher
• Porphyry of Gaza, a saint and bishop of Gaza circa 347–420
• Porphyry, a vineyard near Seaham, New South Wales

Porphyre