Umberto Masetti (4 May 1926 – 28 May 2006) was an Italian two-time World Champion Grand Prix motorcycle road racer.
ˈʌmbɚtˌoʊ mæzˈɛɾi fˈoːɹ mˈeɪ nˈaɪntiːnhˈʌndɹɪd twˈɛnti sˈɪks twˈɛnti ˈeɪt mˈeɪ tˈuː θˈaʊzənd sˈɪks wʌz ɐn ɪtˈæliən tˈuːtˈaɪm wˈɜːld tʃˈæmpiən ɡɹˈænd pɹˈiː mˈoʊɾɚsˌaɪkəl ɹˈoʊd ɹˈeɪsɚ.