Johannes Coenraad Kielstra (13 November 1878 – 1 April 1951) was a Dutch 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.

[7] Back in 1938, Kielstra had involuntarily committed Louis Doedel, a trade unionist, in a psychiatric hospital.

[9][10] On 23 July 1943,[1] Wim Bos Verschuur, a member of the Estates, petitioned Queen Wilhelmina to remove Kielstra from office.

[2] In 1944, Kielstra was appointed Ambassador of the Netherlands to Mexico with an accreditation for Guatemala, and served until his retirement in 1948.