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 best-known in the Netherlands is Blokker.[1] He was also an outspoken critic of the euro and the effects of immigration, and published his criticism in the Blokker Holding annual reports.[1]