Iwona Buczkowska (born 1953) is a Polish-born French architect and urban planner.^[1] She designed the Cité Les Longs Sillons, where she also lives and works.^[2]

Buczkowska studied at the Polytechnic School in Gdańsk and the École Spéciale d'Architecture in Paris, from which she graduated in 1974 with a degree in architecture.^[1][3] She has been inspired by the theories of French architect and urban planner Jean Renaudie,^[3] as well as the way that towns were planned in the Middle Ages, the Renaissance and the Baroque period.^[2] Buczkowska is opposed to the segregation imposed by urban zoning and to the functional urban layout proposed by the Athens Charter. She was innovative in her use of wood as a building material and advocates the use of free plan construction which facilitates movement through the building.^[4]

Buczkowska received the Gold Medal and Special Prize at the Fifth World Biennale of Architecture at Sofia in 1989 for her project at Le Blanc-Mesnil and the silver medal and the Prix Delarue in 1994 from the Académie d'architecture for her collected work.^{[citation needed]} In 2003, she received the Prix grand public de l’Architecture from the region Ile-de-France for her work at Le Blanc-Mesnil.^[4] Buczkowska was awarded the 2024 Jane Drew Prize for being "a pioneer of timber construction and a fierce defender of the right to good housing".^[5][6][7]

• Skapska, Hanna (2020). Iwona Buczkowska: l'architecte face à la pérennité de son oeuvre. Paris: Editions L'Harmattan. p. 218. ISBN 978-2343190440.
• Buczkowska, Iwona; Vitta, Maurizio (1999). Iwona Buczkowska: Breathing Spaces. Milan: L'Arca Edizioni. p. 100. ISBN 978-8878380479.