Jacobus Gerardus "Ko" Suurhoff (23 July 1905 – 14 March 1967) was a Dutch politician of the defunct Social Democratic Workers' Party (SDAP) and co-founder of the Labour Party (PvdA) and trade union leader. Suurhoff was known for his abilities as a debater and manager. He holds the distinction as the third longest-serving Minister of Social Affairs after World War II with 6 years, 111 days.