Okkie van Greunen

{{short description|South African modern pentathlete}}

{{Use dmy dates|date=March 2025}}

{{Infobox sportsperson

| name = Okkie van Greunen

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| birth_date = {{birth date|1933|11|28|df=yes}}

| birth_place = Douglas, Northern Cape, South Africa

| death_date = {{death date and age|1987|5|17|1933|11|28|df=yes}}

| death_place = Pretoria, South Africa

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| sport = Modern pentathlon

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Okkie van Greunen (28 November 1933 – 17 May 1987) was a South African modern pentathlete. He competed at the 1956 and 1960 Summer Olympics.{{cite web |url=https://www.sports-reference.com/olympics/athletes/va/okkie-van-greunen-1.html |archive-url=https://web.archive.org/web/20200418112331/https://www.sports-reference.com/olympics/athletes/va/okkie-van-greunen-1.html |url-status=dead |archive-date=2020-04-18 |title=Okkie van Greunen Olympic Results |accessdate=2012-07-21 |work=sports-reference.com}}