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Agouti refers to a number of species of Central and South American rodents:

  • Common agoutis, members of the rodent genus Dasyprocta
  • Acouchis, members of the genus Myoprocta, also known as tailed agoutis
  • Pacas, members of the genus Cuniculus, formerly Agouti

The term may also refer to:

  • Agouti gene, a gene responsible for determining whether an animal's coat is banded or solid
  • Agouti signalling peptide, a circulating hormone produced by the Agouti gene that acts like an antagonist at melanocortin receptors
  • Agouti-related peptide, a neuropeptide produced in the brain by the AgRP/NPY neuron