Baron Joachim Ammena van Plettenberg was the governor of the Cape of Good Hope from 11 August 1771 to 14 February 1785. Plettenberg was presiding governor after Ryk Tulbagh's death. On 18 May 1774 he was permanently appointed as governor.
- Occupation
- politician, jurist
- Position held
- Governor of the Cape of Good Hope
- Citizenship
- Dutch Republic
- Born
- March 8, 1739, 1739
- Died
- August 18, 1793, 1793