Baron Franciscus Eduardus Maria (Franz) Courtens (1854–1943) was a Belgian painter.

He was a leading figure in the Dendermonde School, famous for his paintings of nature and landscapes. An essay on him by Fernand Khnopff was published in The International Studio 34 (1908). Courtens was professor at the Royal Academy of Fine Arts (NHISKA) in Antwerp from 1904 till 1924.

Franz ou Frans Courtens (de son vrai nom Franciscus Eduardus Maria Courtens) est un peintre belge né à Termonde le 4 février 1854 et mort à Saint-Josse-ten-Noode le 2 janvier 1943.