Once in a Blue Moon
- Blue moon
- Mabel Mercer
- Once in a Blue Moon (1935 film)
- Once in a Blue Moon (1995 film)
- Once in a Blue Moon (2011 film)
- Once in a Blue Moon (Charmed)
- Once in a Blue Moon (Fool's Garden album)
- Once in a Blue Moon (Frankie Miller album)
- Once in a Blue Moon (Phil Beer Band album)
- Once in a Blue Moon (University of Texas Jazz Orchestra album)
- Once in a Blue Moon (comics)
- Once in a Blue Moon (song)
- Once in a Blue Moon (stories)
- Once in a Lifetime (disambiguation)
- Once in a Very Blue Moon
- Postcards from Heaven
- Simply Irresistible (album)
- Sukanya Datta
- Summer Rain (musical)