Wonderful Day may refer to:
Wonderful Day (film) or I've Gotta Horse, a 1965 British film starring Billy Fury Wonderful Day (album) or the title song, Russian version of About the Boy Who Plays the Tin Drum by Brainstorm, 2018 "Wonderful Day", a song by Alvin and the Chipmunks from Christmas with The Chipmunks, 1962 "Wonderful Day", a song by the Other Half, 1967
See also The Wonderful Day (disambiguation) Wonderful Days (disambiguation)