Filip Fabricius, later of Rosenfeld and Hohenfall (c. 1570, Mikulov – 18 October 1632, Prague) was a Bohemian Catholic officer best known for being thrown out of the Prague Castle window during the Third Defenestration of Prague with two Czech Catholic noblemen, Count Jaroslav Bořita of Martinice and Count Vilém Slavata of Chlum and Košumberk.