Peter van Merksteijn Jr. (born 1 September 1982) is a Dutch racing driver and rally driver who will be driving for the Van Merksteijn Motorsport team in the 2011 World Rally Championship season.

He won the Dutch Rally Championship in 2007 in the Group N class with a Mitsubishi Lancer Evolution IX.

He is the son of Peter van Merksteijn Sr., who raced in the WRC before and won the 2008 24 Hours of Le Mans in the LMP2 class, using a Porsche RS Spyder.

He started his rallying career in 2006 with a Renault Mégane and entered in national events.

2008 saw Van Merksteijn alter between a number of cars, the Evo VIII and IX's and a Ford Focus RS WRC 06.