Marianne Beth (March 6, 1889, Vienna – August 19, 1984, New York City) was a Jewish Austrian lawyer and feminist.
Her brother was the Orientalist and Zionist leader Wolfgang von Weisl.
In 1906, she married the Berlin theologian Karl Beth and converted from Judaism to Protestantism.
In 1921, she became the first woman doctor of law on the juridical faculty in Vienna as a lecturer.
"[3] When Nazi Germany annexed Austria in 1938 (Anschluss), her name was removed from the registry of attorneys and Beth and her husband emigrated to the United States.