Alley is a surname. Notable people with the surname include:

Anthea Alley (1927–1993), British sculptor Allen Alley (born 1954), American businessman and politician Alphonse Alley (1930–1987), Beninese political figure Bill Alley (1919–2004), Australian cricket player Cal Alley (1915–1970), American editorial cartoonist Candice Alley (born 1982), Australian singer-songwriter Carroll Alley (1928–2016), American physicist Chelsea Alley (born 1982), New Zealand rugby player Don Alley (1945–2020), American football player Ernest Alley (1904–1971), American football player Fred Alley (1962–2001), American lyricist Gene Alley (born 1940), American baseball player Geoff Alley (1903–1986), New Zealand rugby player George Alley (died 1912), Irish Methodist Henry Alley (born 1945), American writer Jennifer Alley, American basketball coach Jerome Alley (1760–1826), Irish poet and author John B. Alley (1817–1896), American politician and businessman Keirsten Alley (born 1973), American tennis player Kim Alley (born 1965), American modeling agent Kirstie Alley (1951–2022), American actress and comedian Larry Alley (born 1948), American politician Lindsey Alley (born 1977), American actress and singer Miko Alley, American-Filipino footballer Phil Alley (born 1970), Australian cricket player Rewi Alley (1897–1987), New Zealand writer Richard Alley (born 1957), American geologist Rick Alley (born 1963), American poet Ronald Alley (1926–1999), British art historian and curator Shelly Lee Alley (1894–1964), American singer, musician, songwriter and western swing bandleader Stephen Alley (1876–1969), British mechanical engineer and secret agent Steve Alley (born 1953), American ice hockey player T. W. Alley (1942–1993), American football player and coach Taylor Alley, American rugby player Ted Alley (1881–1949), Australian footballer Thomas Alley (born 1946), American politician Tom Alley (1889–1953), American racing driver Vernon Alley (1915–2004), American jazz musician Wayne Alley (born 1932), American judge William Alley (1510–1570), Anglican prelate William Alley (athlete) (born 1936), American javelin thrower William Nassau Alley (1808–1849), Irish methodist Zeb Alley (1928–2013), American lawyer, lobbyist, and politician