Wilhelmine von Hillern (11 March 1836 Munich – 15 December 1916 Hohenaschau) was a German actress and novelist.

One of them, Höher als die Kirche (Higher Than the Church; a tale of Freiburg im Breisgau in Reformation days, 1877) was quite well known in America by reason of the fact that it was frequently read as a text by students of elementary German.

It is a comparatively insignificant work, however, by no means so important as the novels, Ein Arzt der Seele (A Doctor for the Soul; a satire of bluestockings, Berlin 1869), Die Geier-Wally (The Vulture Maiden, Berlin 1875), Und sie kommt doch (The Hour Will Come, Berlin 1879), and Ein Blick ins Weite (Black Forest sketches, 1897).

Von Hillern's Die Geyer-Wally became the subject for the Italian composer Alfredo Catalani's last and most successful opera.

The memoirs and biographies of Sabine Baring-Gould contain firsthand descriptions of von Hillern.