Kurzweil is a surname of German and Yiddish origin with the literal meaning "short while" or "short time" which in modern German only occurs as the adjective/adverb kurzweilig, meaning "entertaining" or "diverting". Notable people with the surname include:
Adele Kurzweil (1925–1942), Austrian Holocaust victim Allen Kurzweil (born 1960), American writer Amy Kurzweil (born 1986), American cartoonist Arthur Kurzweil (born 1951), American genealogist, scholar of Judaism and writer Baruch Kurzweil (1907–1972), Israeli literary critic Edith Kurzweil (1925–2016), American writer and editor Jaroslav Kurzweil (1926–2022), Czech mathematician Max Kurzweil (1867–1916), Austrian painter and printmaker Ray Kurzweil (born 1948), American inventor, author and futurist Kurzweil Music Systems, company founded by Ray Kurzweil that produces electronic musical instruments Kurzweil Educational Systems, company founded by Ray Kurzweil that produces reading and writing software