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 NIKHEF, the National Institute for Nuclear and High energy physics in the Netherlands.

He was also instrumental in the creation of the Réseaux IP Européens Network Coordination Centre (RIPE NCC) in 1992 as the first regional Internet registry (RIR) in the world.

He received this Royal Honour from Lodewijk Asscher, the Acting Mayor of Amsterdam.

[8] On 1 December 2016, the RIPE NCC established the Rob Blokzijl Foundation to honour Rob's legacy by recognising and rewarding individuals who make substantial contributions to the development of the internet in the RIPE NCC service region.