Thanphuying Poonsapaya Navawongs na Ayudhya (Thai: พูนทรัพย์ นพวงศ์ ณ อยุธยา, also spelled Poonsap Noppawong, 12 October 1910 – 23 October 2015) was a Thai educator. She was a professor at Chulalongkorn University, where she founded the Faculty of Education and was its first dean, and contributed extensively to the development of teacher education and education administration in Thailand. She has been recognized as one of the foremost contributors to education in the country.