Iris Anna Runge (1 June 1888 – 27 January 1966) was a German applied mathematician and physicist.
After 1945, she taught at the adult education center in Spandau and was a research assistant at Technische Universität Berlin.
Her inaugural lecture was titled Über das Rauschen von Elektronenröhren ("On the noise in electron tubes"); her published works were accepted in lieu of a habilitation thesis.
In 1947, she was offered a teaching position there, and she worked until 1949 as an assistant to Friedrich Möglich, the chair of the theoretical physics division at Humboldt University.
She was one of three women professors in the Faculty of Mathematics and Natural Sciences, the other two being Elisabeth Schiemann and Katharina Boll-Dornberger.
In 1952 she became an emeritus professor at Humboldt University, where she gave lectures on theoretical physics until the summer semester of 1952.