Pieter Paulus (9 April 1754 – 17 March 1796) was a Dutch jurist, admiral-fiscal and politician. He was one of the ideologues of the Patriot movement and is considered by many Dutch as the founder of their democracy and political unity.
Paulus was born in Axel, Zeelandic Flanders. His father was Axel's mill-builder, schepen and mayor. He came, perhaps, from a family of lapsed Huguenots. After an education in 's-Hertogenbosch, he received his training from the Vlissingen rector Van Cruysselenbergen, in whose house he lived. He became a student in Utrecht in 1770.
Paul became known nationwide through his bestselling book on the stadholder system, in which he opposed both the stadholder system and the . In 1774, he became a student at Leiden and he graduated on 12 December 1775, with his dissertation becoming a second publishing success. He established himself in 1776 as a lawyer at the Court of Holland in the Hague. In 1780, he was involved in the controversy over the expansion of the fleet, defended by Admiral Jan Hendrik van Kinsbergen. In 1781, he married the very rich Françoise Vockestaert and bought the country house "Pasgeld" near Delft.
He again became nationally known in 1783 through his apologia for the city of Alkmaar, one of the first cities (after Schoonhoven) to pass a resolution to limit the influence of the stadholder. Paul was approached, meanwhile, to become one of the leaders of the Patriots, with whom he began to negotiate. He was invited to come to consult at the Zeekantoor of the Admiralty of Amsterdam with princess Wilhelmina of Prussia and Joan Cornelis van der Hoop. In April 1785, he became Darn public- prosecutor (advocaat-fiscaal) for the Admiralty of the Maze, taking the initiative in its reorganisation. After the events in Hattem, Paul refused to come to Het Loo, but probably was in friendly negotiations with the French ministry of Foreign Affairs.