Isolde Hausser (née Ganswindt; 7 December 1889 – 5 October 1951) was a German physicist.
After graduating from the Chamisso School in Berlin-Schöneberg in 1909, she began studying physics, mathematics, and philosophy at the University of Berlin.
In 1914, she received a doctorate degree in physics with a dissertation titled Erzeugung und Empfang kurzer elektrischer Wellen ("Production and reception of short electrical waves").
In 1929 she joined the Kaiser Wilhelm Institute for Medical Research in Heidelberg, where she became head of an independent department in 1935.
The Isolde-Hausser-Straße ("Isolde Hausser street") in Königs Wusterhausen is named after her.