Pyotr Ustinovich Brovka was a Soviet Belarusian poet, more commonly recognized by his literary pseudonym Petrus Brovka.

Petrus Comestor, also called Pierre le Mangeur, was a twelfth-century French theological writer and university teacher.

Petrus de Dacia was a 13th-century Swedish friar of the Dominican Order. He was most noted for his correspondence with the mystic and ecstatic Christina von Stommeln. Though he wrote in Latin, Petrus de Dacia is often credited as the first author in Sweden.

Petrus Hofman Peerlkamp was a Dutch classical scholar and critic.

Petrus Johannes Blok (10 January 1855, in Den Helder – 24 October 1929, in Leiden) was a Dutch historian.

Petrus Loosjes, was an 18th-century writer and Mennonite minister from the Northern Netherlands.

Petrus Ramus was a French humanist, logician, and educational reformer. A Protestant convert, he was a victim of the St. Bartholomew's Day massacre.

Petya Stoykova Dubarova (Bulgarian: Петя Стойкова Дубарова) (April 25, 1962 – December 4, 1979) was a Bulgarian poet.

Peyo Yavorov was a Bulgarian Symbolist poet. He was considered to be one of the finest poetic talents in the fin de siècle Kingdom of Bulgaria. Yavorov was a prominent member of the "Misal" ("Мисъл") literary and cultural group. His life and work are closely connected with the liberation movement Internal Macedonian-Adrianople Revolutionary Organization in Macedonia. He was also a supporter of the Armenian Independence Movement, and wrote a number of poems about Armenians.

Phaedo of Elis was a Greek philosopher. A native of Elis, he was captured in war as a boy and sold into slavery. He subsequently came into contact with Socrates at Athens, who warmly received him and had him freed. He was present at the death of Socrates, and Plato named one of his dialogues Phaedo.