Keady is a surname. Notable people with the surname include:
Gene Keady (born 1936), American basketball coach Jim Keady (born 1971), American activist, educator, and politician Patrick Keady (1832–1908), Irish-American painter, politician, lawyer, and judge Tom Keady (1882–1964), American football, basketball, and baseball player and coach Tony Keady (1963–2017), Irish hurler W. P. Keady (1852–1917), American politician William Colbert Keady (1913–1989), United States district judge