Mercedes-Benz SLR McLaren is grand tourer car jointly developed by Mercedes-Benz and McLaren Automotive, built in Portsmouth and the McLaren Technology Centre in Woking, Surrey, England and sold from 2003 to 2009. When it was developed, German manufacturer Mercedes-Benz owned 40 percent of the McLaren Group.

Due to the automatic gear box, front mid-engined arrangement, and its driving characteristics, some commentators classify the SLR McLaren as a GT, whose rivals would be vehicles such as the Aston Martin DBS V12 and Ferrari 599 GTB Fiorano.

SLR stands for "Sport Leicht Rennsport" (Sport Light Racing). Mercedes-Benz stated that they would build 3,500 SLRs over seven years, with an annual production of 500 cars.