Copula is a Latinate term meaning 'link' which may refer to:
Arts and entertainment Beatmania IIDX 23: Copula, a 2015 rhythm game Copula (music), a polyphonic texture
Biology Copula (cnidarian), a genus of box jellyfish Copula linguae, an embryonic structure of the tongue
Linguistics Copula (linguistics), a word used to link subject and predicate Indo-European copula Romance copula
Mathematics Copula (probability theory), a function linking marginal variables into a multivariate distribution Copulas in signal processing