ɚɹˈɪdʒɪnəli kˈɔːld ðə dʒˈɛnɚɹəl pˈoʊstəl jˈuːniən, ðɪ ˌɔːɹɡɐnᵻzˈeɪʃən ɪstˈæblɪʃt baɪ ðə tɹˈiːɾi wʌz ɹᵻnˈeɪmd ðə jˌuːnɪvˈɜːsəl pˈoʊstəl jˈuːniən ɪn wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd sˈɛvənti ˈeɪt dˈuː tʊ ɪts lˈɑːɹdʒ mˈɛmbɚʃˌɪp.
Originally called the General Postal Union, the organization established by the Treaty was renamed the Universal Postal Union in 1878 due to its large membership.