Johannes Coenraad Kielstra (13 November 1878 – 1 April 1951) was a professor and Governor of Suriname from 1933 until 1944. During World War II, he increased his authority and imprisoned political opponents causing the resignation of all elected members of the Estates of Suriname. On 28 December 1943, he was given an honourable discharge by the Dutch government-in-exile. He served as Ambassador of the Netherlands to Mexico from 1944 until 1948.