Jacob "Jaap" Blokker (5 February 1942 – 5 July 2011) was a Dutch businessman and executive. Blokker was born in Amsterdam. From 1976 to 2010 he was general director of Blokker Holding, which operates a series of chain stores in various countries, the most well known in the Netherlands is . He was also an outspoken critic of the euro and the effects of immigration and published his criticism in the Blokker Holding annual reports.