Houshang Seyhoun (1920 – 2014) was an Iranian architect, sculptor, painter, scholar and professor. He studied fine arts at the École nationale supérieure des Beaux-Arts in Paris, and earned a degree in architecture from University of Tehran. He is noted specially for his innovative and creative architectural design

Seyhoun's work includes several monuments such as the Avicenna Mausoleum in Hamadan, Tomb of Ferdowsi and Tomb of Nader Shah in Mashhad and Omar Khayyam Mausoleum in Nishapur and Tehran's Central Railway Station.