Ilse Jonas (29 May 1884–30 April 1922) was a German painter.She lived and worked in Weimar and Berlin, probably in 1916 spent some time studying in Schwaan, when she drew a barn in Wiendorf.
That year she also made the painting WarnowbrĂĽcke (Warnow Bridge).
Other women who came to study in Schwaan were Elisabeth von Aster, Barkenhöft, Lilly Schmidt, Hedwig von Germar, and Helene Dolberg.