Henderikus Theodorus Maria "Hein" Pieper (born 10 May 1962) is a Dutch theologian, writer, and politician. He is dijkgraaf for the water board of Rijn en IJssel[1] and was the chairman of New Social Contract (NSC) from 24 August to 2 October 2023.[2][3] Pieper was present at the registration of NSC, saying of Omtzigt; "Pieter has exerted himself these past years for two themes that are close to my heart: good governance and social security for all inhabitants."[1] De Gelderlander newspaper labeled Pieper "the man behind the new party of Pieter Omtzigt."[4]