Copula is a Latin term meaning link or tie. It can also refer to:

• Copula (probability theory), a function linking marginal variables into a multivariate distribution
  • Copulas in signal processing

• Copula (cnidarian), a genus of box jellyfish
• Copula linguae, an embryonic structure of the tongue

• Beatmania IIDX 23: Copula, a video game
• Copula (music), a type of polyphonic texture similar to organum

• Copula (linguistics), a word used to link subject and predicate
  • Indo-European copula
    • Romance copula