Yoshinobu Oyakawa (, born August 9, 1933) is an American former competition swimmer, Olympic champion, and former world record-holder in the 100-meter backstroke.
jˈɑːʃɪnˌɑːbuː ˌɔɪɐkˈɑːwə, bˈɔːɹn ˈɔːɡəst nˈaɪn, nˈaɪntiːnhˈʌndɹɪd θˈɜːɾi θɹˈiː ɪz ɐn ɐmˈɛɹɪkən fˈɔːɹmɚ kˌɑːmpətˈɪʃən swˈɪmɚ, əlˈɪmpɪk tʃˈæmpiən, ænd fˈɔːɹmɚ wˈɜːld ɹˈɛkɚdhˈoʊldɚɹ ɪnðə wˈʌnhˈʌndɹɪdmˈiːɾɚ bˈækstɹoʊk.