Magdalena Hermina 'Madelon' Székely-Lulofs (1899–1958) was a Dutch writer and journalist, best known for her novels set in the former Dutch East Indies, now Indonesia. After her first novel, Rubber, was published in 1931, she became a famous writer. The novel, inspired by her life on a rubber plantation in Deli, was translated in several languages and turned into a play and a film.