Lambertus Jacobus Jozef van Nistelrooij (born 5 March 1953) is a Dutch politician who served as a Member of the European Parliament (MEP) from 2004 till 2019. He is a member of the Christian Democratic Appeal, part of the European People’s Party.
Lambert van Nistelrooij got elected as a Member of the European Parliament in 2004 and reelected in 2009 and 2014. He was a member of the EP Committee on Regional Development. He was also substitute member of the EP committee on Internal Market and member of the delegation for EU-relations with Latin-America, Brazil and Mercosur.
During his second mandate he was also engaged in energy and telecommunications in his function as a substitute member of the EP Committee on Industry, Research and Energy. He was also on the delegations for relations with the countries of South Asia, Maghreb countries and the Arab Maghreb Union, and the Euro-Latin American Parliamentary Assembly.