Peter van Merksteijn Jr. 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 made his WRC début in 2007 at the Rallye Deutschland. 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.

Van Merksteijn Motorsport is a Dutch motorsport company active in both circuit racing and rallying. Established in 2008, under the ownership of Peter van Merksteijn Sr. and with Gerard Grouve as team principal, this motorsport company won both the LMP2 class title in the prestigious 24 Hours of Le Mans and in the gruelling the Le Mans Series in its first year of competition. Only one year later the team from Hengelo were again unbeatable when contesting the Dutch Rally Championship. For the 2011 season, the team has once more undertaken very ambitious plan: Peter van Merksteijn Jr. will compete in the World Rally Championship alongside Peter van Merksteijn Sr. driving a Citroën DS3 WRC.