Franciszka Arnsztajnowa ([fra?'t??i?ka arn?taj'n?va]; in full: Franciszka Hanna Arnsztajnowa; 19 February 1865 – August 1942) was a Polish poet, playwright, and translator of Jewish descent.
Much of her creative oeuvre falls within the Young Poland period, stylistically encompassing the twilight of neo-romanticism.