Peter van Dalen is a Dutch politician and former civil servant. He is a member of the ChristenUnie party, and was formerly a member of the Reformatory Political Federation (RPF), which merged with the Reformed Political League (GPV) to form the ChristianUnion. He is a Member of the European Parliament.

Van Dalen studied history and international relations at Utrecht University. He worked in the House of Representatives of the Netherlands as a member of staff for Meindert Leerling, with responsibility for health policy. He became a senior policy officer for Leen van der Waal, a Member of the European Parliament for a joint RPF/GPV/SGP ticket in 1984. In 1989, van Dalen joined the Ministry of Transport, Public Works and Water Management, dealing with the then-European Economic Community (EEC). From 1990 to 2009, van Dalen held increasingly senior positions in the Ministry, reaching the position of Superintendent-Director of the Inspectorate of Transport and Public Works. From 1994 to 1998, Van Dalen was a member of the municipal council of Houten for the combined fraction of RPF/GPV and also leader of this fraction.

 At the end of February 2009, van Dalen was designated leader for the 2009 European elections of the ChristianUnion. During this term, Van Dalen was vice-chairman of the Committee on Transport and Tourism in the European Parliament. In 2014 van Dalen has been re-elected as member of the European Parliament where he is member in the Committee on Transport and Tourism, Committee on Fisheries and Delegation for relations with India. Furthermore he is a substitute in the Delegation for relations with the countries of South Asia.