Pieter Cornelis Feith (born 9 February 1945) is a Dutch diplomat, currently serving as the European Union Special Representative (EUSR) in Kosovo.

Feith was born in Rotterdam, the Netherlands, and studied political science at the University of Lausanne, Switzerland and is a graduate of the Fletcher School of Law and Diplomacy at Medford, United States (1970).

Feith has been active in foreign affairs since 1970. He has been posted in Damascus, Bonn, New York (Mission to the United Nations), Khartoum and at the Netherlands Mission to NATO and the Western European Union (WEU), in Brussels. He also Chaired the first United Nations Conference of States Parties to the Chemical Weapons Convention at The Hague in 1997.