Ryan Dalziel born 12 April 1982), is a British professional racing driver. Dalziel has seen the most success in his career in the United States, racing in the American Le Mans Series GT1 class and the Champ Car World Series, and winning the 2010 24 Hours of Daytona.
Born in Glasgow, Dalziel began his car racing career in 1999 in Formula Vauxhall. He drove in British Formula Renault and British Formula 3, before moving to the United States. From 2002 until 2004, he spent three years in the Toyota Atlantic Championship, finishing runner-up twice, before moving to the American Le Mans Series in 2005. He also contested one Champ Car race for Dale Coyne Racing at Toronto, finishing 9th. In 2006, he drove a Daytona Prototype in the Rolex Sports Car Series. From 2007-2009, he drove part-time with various teams in the Daytona Prototype class, then returned full-time in 2010.