Other
- Smiley face murder theory, a theory that drowning victims were instead murdered
- 1613 Smiley, an asteroid
- (15760) 1992 QB1, a trans-Neptunian object for which Smiley was an early proposed name
- the cookie mascot at Eat-N-Park
- a common name for an upper lip frenulum piercing
- Smiley face curve, a graphic equalizer adjustment with reduced midrange content
- Another name for a chainlock, an improvised weapon made from a length of chain attached to a lock or other heavy piece of metal.
Read more about this topic: Smiley (film)