Trinacria may refer to:

• the ancient name of Sicily
  • Sicily in the classical Greek period; see History of Greek and Hellenistic Sicily
  • Name for the Kingdom of Sicily during the 1300s
  • Name for the emblem of Sicily (the triskeles with the Gorgoneion Medusa); see Triskelion § Sicily
    • A nickname of the modern flag of Sicily
• Trinacria, a genus of bivalves in the family Noetiidae
• Trinacria (diatom), a genus of diatoms
• Trinacria, a noise/death metal band which is a side project for members of Enslaved

• Three valli of Sicily
• Three-finger salute (Sicilian)
• Thrinacia, the Homeric island of Helios' cattle

This disambiguation page lists articles associated with the title Trinacria.
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