ðə tˈaʊnz nˈeɪm ɪtsˈɛlf ɪz θˈɔːt tə kˈʌm fɹʌm kˈɑːpoʊ dʒiˈɑːnoʊ lˈɪɾɚɹəli "hˈɛd ʌv dʒˈænəs", ðɪ ˈeɪntʃənt ɹˈoʊmən dˈiːəti hˌuː kʊd sˌaɪməltˈeɪniəsli sˈiː ðə pˈæst ænd ðə fjˈuːtʃɚ ɔːɹ fɹʌm kˈɑːsə pˈoːɹʃiənə lˈɪɾɚɹəli "hˈaʊs ʌv pˈɪɡz", ɹᵻfˈɜːɹɪŋ tə ðə kəntˈɪnjuːd lˈɑːɹdʒ nˈʌmbɚɹ ʌv wˈaɪld bˈoːɹz ðæt ɹˈoʊm ðə wˈʊdz ɪnðɪ ˈɛɹiə.
The town's name itself is thought to come from Capo Giano (literally "head of Janus", the ancient Roman deity who could simultaneously see the past and the future) or from Casa Porciana (literally "house of pigs", referring to the continued large number of wild boars that roam the woods in the area).