Kirschstein is a German surname meaning "cherry stone". It may refer to:
Hans Kirschstein (1896–1918), German fighter pilot Leonore Kirschstein (1933–2017), German soprano Ruth L. Kirschstein (1926–2009), U.S. pathologist and public health administrator Sascha Kirschstein (born 1980), German footballer Wilhelm Kirschstein (1863–1946), German schoolteacher and mycologist Jean Kirschstein, a fictional character from the Attack on Titan series. also spelled as "Jean Kirstein".