Rob Blokzijl, Dutch physicist and computer scientist (b. 1943)

Robert "Rob" Blokzijl (21 October 1943 – 1 December 2015) was a Dutch physicist and computer scientist at the National Institute for Subatomic Physics (NIKHEF), and an early internet pioneer. He was founding member and chairman of RIPE, the Reseaux IP Europeenne, the European Internet Registrar organisation.