Octave Pirmez (1832 - May, 1883), Belgian author, was born at Châtelineau in 1832.

He belonged to a well-known Belgian family, and his cousin, Edouard Pirmez, was distinguished for his works on literary and political subjects. He lived an uneventful life at his château of Acoz, in Hainaut, where he died.

Pirmez was an ardent admirer of the French romanticists. His works include:

• Les Feuillees: pensées et maximes (1862)
• Victor Hugo (1863)
• Jours de solitude (1869)
• Remo
• Souvenirs d'un frère (1880)
• Heures de philosophie (1881)
• (posthumous) Lettres à José (1884).

These books form a history of his emotional life, and reveal an extreme melancholy.

See Vie et correspondance d'Octave Pirmez (1888), by Adolphe Siret and José de Coppin.