Pierre, 1st Count Ryckmans (23 November 1891 – 18 February 1959), was a Belgian peer and civil servant who served as Governor-General of Belgium's principal African colony, the Belgian Congo, between 1934 and 1946. Ryckmans began his career in the colonial service in 1915 and also spent time in the Belgian mandate of Ruanda-Urundi. His term as Governor-General of the Belgian Congo coincided with World War II in which he was instrumental in bringing the colony into the war on the Allied side after Belgium's defeat in May 1940. He was also a prolific writer on colonial affairs. He was posthumously created a peer of the realm in the Belgian nobility with the rank of Graaf (or Count) in 1962.