Eady is a surname. Notable people with the surname include:
Charles Eady, (1870–1945), Australian cricketer
Charles Swinfen Eady, 1st Baron Swinfen, (1851–1919), British lawyer and judge
Cornelius Eady, (1954–), American poet
David Eady, (1943–), English High Court judge
David Eady (film director), (1924–), British film director and producer
Dorothy Eady, (1904–1981), English Egyptologist
Hanna Eady, (1956–), Palestinian-American actor and playwright
Roger Swinfen Eady, 3rd Baron Swinfen, (1938–), British peer