Grady is a surname of Irish origin, derived from the Irish word gráda ("noble"). Notable people with the surname include:
Benjamin F. Grady (1831–1914), U.S. Congressman from North CarolinaDennis Grady (1886–1974), American college sports coachDon Grady (born 1944), American composer, musician and actorHenry W. Grady (1850-1889), American journalist and oratorJ. Harold Grady (1917–2002), Mayor of Baltimore, MarylandJames Grady (born 1971), Scottish former footballerJames Grady (author) (born 1949), American author of thriller novelsJohn Grady (disambiguation), several peopleMike Grady (baseball) (1869-1943), American Major League Baseball playerPatrick Grady, Scottish National Party politician, MP for Glasgow North since 2015Thomas Grady (disambiguation), several peopleWayne Grady (born 1957), Australian golferWayne Grady (author) (born 1948), Canadian writer, editor