Happy Day

Happy Day may refer to:


 * The Happy Day, a 1916 musical comedy
 * Happy Day (album), a 2008 album by Tim Hughes
 * "The Happy Day" (Ashes to Ashes), an episode of Ashes to Ashes
 * Hap Day (1901–1990), Canadian professional hockey player
 * "Happy Day", a 1994 song by house musical duo Uncanny Alliance
 * "Happy Day", a song by Talking Heads from their 1977 album Talking Heads: 77
 * "Happy Day" (song), a 2014 song by Georgian singer Lizi Pop
 * Happy Day (film), a 1939 Egyptian film
 * The Happy Day (picture book), a 1949 picture book
 * "Happy Day," a 1755 hymn by Philip Doddridge