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
• A. N. Day (Alfred Norwood Day, 1868–1939), South Australian railways official