Other
- Many Happy Returns: The Hits, a 1992 greatest hits collection by singer Gary Glitter
- "Many Happy Returns", a song by Inspiral Carpets from the album Life
- "Many Happy Returns", a song by ABC from the album The Lexicon of Love
- "Many Happy Returns", a story arc in the 1996 Supergirl series by Peter David and Gary Frank
- Many Happy Returns (book), a 1942 comedy book on the income tax by Groucho Marx
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