Alfred Day

Alfred Day may refer to:


 * Alf Day (1907–1997), Welsh footballer
 * Alf Day (Australian footballer) (1884–1968), Australian rules footballer
 * Alfred Day (jockey) (1830–1868), British jockey
 * Alfred Day (music theorist) (1810–1849), English music theorist
 * Alfred Norwood Day (1868–1939), South Australian railways official