Gerstmann is a surname. Notable people with the surname include:
Jeff Gerstmann (born 1975), American video game journalist and musician Josef Gerstmann (1887–1969), Austrian neurologist Louis Gerstman (1930–1992), American neuropsychologist
See also Gerstmann syndrome, a neuropsychological disorder Gerstmann–Sträussler–Scheinker syndrome, a very rare fatal neurodegenerative disease