Peter Samuel Dempsey (born 31 March 1986) is an Irish racing driver from Ashbourne, County Meath. Dempsey began his pro career in Formula BMW UK in 2004, finishing 22nd. In 2005 he finished second in the Formula Ford Walter Hayes Trophy race and won the BRDC Golden Helmet. In 2006 he finished third in Formula Ford UK and won the Walter Hayes Trophy. In 2007 he won both the Golden Helmet and Walter Hayes Trophy. 2008 saw Dempsey move to the United States to race in Star Mazda for Andersen Racing where he won four races and finished third in points. He also made two starts in the F2000 Championship Series. In 2009 he finished second in Star Mazda for . He had no full-time drive in 2010 but participated in one American Le Mans Series race (the 2010 Petit Le Mans) and a number of high-profile