Porphyry (; , Porphyrios "purple-clad") may refer to: Porphyry (geology), an igneous rock with large crystals in a fine-grained matrix and important Roman building material Porphyritic, the general igneous texture of a rock with two distinct crystal (phenocryst) sizes Porphyry copper deposit, a primary (low grade) ore deposit of copper, consisting of porphyry rocks Tyrian purple or Porphyra, a purple-red natural dye "Porphyria's Lover", originally published as "Porphyria", a poem by Robert Browning Porphyrian tree, classic device for illustrating hierarchy and ontology Porphyria, a disease Porphyrins, a group of organic compounds Places Mons Porphyrites, the only porphyry quarry worked in the ancient world for the emperor's building works and statuary Porphyry Island in Lake Superior, Canada Porphyry Mountain in Alaska, Unites States Porphyry, a system of astrological house division Porphyry, a vineyard near Seaham, New South Wales, Australia Animals and plants Porphyra, a foliose red algal genus of laver Oliva porphyria, a species of sea snail Porphyrio, the swamphens, a genus of birds in the rail family Porphyrios (whale), a 6th-century whale People Porphyry (philosopher) (234–305), Neoplatonic philosopher Porphyry of Gaza (or "Saint Porphyrius", 347–420), Bishop of Gaza Porfirije, Serbian Patriarch (b. 1961), 46th Patriarch of the Serbian Orthodox Church Porphyrio, also known as Pomponius Porphyrion, a Latin grammarian, fl. 2nd or 3rd century Porphyrion, a giant in Greek mythology Porphyrius the Charioteer, Roman charioteer in the 5th and 6th centuries AD Demetri Porphyrios, greek new classical architect, founder of Porphyrios Associates Porphyrios Dikaios, greek cypriot archaeologist Porphyrios of Kafsokalyvia, greek athonite hieromonk and eastern orthodox saint Publilius Optatianus Porfyrius (), Latin poet See also Porfirio (disambiguation), various uses, including a Spanish surname Porfiry, a Russian given name