Ayer (surname)

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


 * A. J. Ayer (1910–1989), British philosopher
 * Caleb Ayer (1813–1883), American politician
 * Claire D. Ayer (born 1948), Vermont politician
 * David Ayer (born 1968), American screenwriter
 * Donald B. Ayer (born 1949), United States Deputy Attorney General
 * Edward E. Ayer (1841–1927), American antiquarian and benefactor of Newberry Library and the Field Museum of Natural History
 * Francis Ayer (1848–1923), American advertising businessman
 * Frederick Ayer (1822–1918), American businessman
 * Frederick Ayer Jr. (1915–1974), American government official
 * Harriet Hubbard Ayer (1849–1903), American cosmetics entrepreneur and journalist
 * Hilal Tuba Tosun Ayer (born 1970), Turkish female referee
 * James Cook Ayer (1818–1878), American patent medicine businessman
 * Lewis Malone Ayer Jr. (1821–1895), Confederate politician
 * Nat Ayer (1887–1952), British-American composer
 * Richard S. Ayer (1829–1896), U.S. Representative from Virginia