Blow is the surname of several people:
David Mervyn Blow (born 1931), an influential British biophysicistDetmar Blow (born 1867), a British architect of the early 20th centuryGodfrey Blow (born 1948), an artist based in Kalamunda, Western AustraliaHenry Taylor Blow (born 1817), a U.S. Representative and Ambassador from MissouriIsabella Blow (1958 - 2007), a British magazine editor and international style iconJohn Blow (born 1649), an English composer and organistJonathan Blow, a video game programmer and designerKurtis Blow, an American rapperSandra Blow (born 1925), an English painterSusan Blow (born 1843), an American educatorThomas Blow, a provincial level politician from Alberta, Canada