Rózsa Péter (orig.: Politzer), (17 February 1905–16 February 1977) was a Hungarian mathematician. She is best known for her work with recursion theory.
Péter was born in Budapest, Hungary, as Rózsa Politzer. She attended Eötvös Loránd University, where she received her Ph.D. in 1935. After the passage of the Jewish Laws of 1939 in Hungary, she was forbidden to teach because of her Jewish origin. After the war she published her key work, Recursive Functions.
She taught at Eötvös Loránd University from 1955 until her retirement in 1975. She was a corresponding member of the Hungarian Academy of Sciences (1973).
* Ackermann function
* "Rózsa Péter", Biographies of Women Mathematicians, Agnes Scott College