sˈiːz dʒˈæn dˈiːpɪvˌiːn bˈɔːɹn dʒuːlˈaɪ twˈɛnti fˈoːɹ, nˈaɪntiːnhˈʌndɹɪd fˈɪfti sˈɪks ɪn ˈæmstɚdˌæm, nˈɔːɹθ hˈɑːlənd ɪz ɐ fˈɔːɹmɚ fˈiːld hˈɑːki plˈeɪɚ fɹʌmðə nˈɛðɜːləndz, hˌuː pɑːɹtˈɪsᵻpˌeɪɾᵻd ɪn θɹˈiː sˈʌmɚɹ əlˈɪmpɪks: ɪn lˌɑːs ˈændʒəlɪs nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi fˈoːɹ, ɪn sˈoʊl nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi ˈeɪt ænd fˈaɪnəli ɪn bˌɑːɹsɪlˈoʊnə nˈaɪntiːnhˈʌndɹɪd nˈaɪnti tˈuː.
Cees Jan Diepeveen (born July 24, 1956 in Amsterdam, North Holland) is a former field hockey player from the Netherlands, who participated in three Summer Olympics: in Los Angeles (1984), in Seoul (1988) and finally in Barcelona (1992).