Joshua David "Josh" Duhamel (pronounced duh-MEL; born November 14, 1972) is an American actor and former fashion model. He first achieved acting success in 1999 as Leo du Pres on ABC's All My Children and later as the chief of security, Danny McCoy, on NBC's Las Vegas. He is also well known for his role as one of the protagonists, Captain William Lennox, in the box office hit Transformers and he is the official pace car driver for the 2009 Indianapolis 500 driving the 2010 Chevrolet Camaro Pace Car.

Duhamel was born in Minot, North Dakota, the son of Bonnie, a physical education teacher, and Larry David Duhamel, an advertising salesman. His parents divorced during his youth, and although he remains close to both, he grew up with his mother and his younger sisters Ashlee, Mckenzee and Kassidy. Duhamel attended Minot State University and played quarterback for the university's football team. He planned to attend dental school but dropped out one-and-a-half credits shy of his undergraduate degree.

Duhamel has stated, "After college, I followed an ex-girlfriend to northern California, did a bunch of odd jobs and then sort of fell into modeling." He won the title of Male Model of the Year in an IMTA (International Modeling and Talent Association) modeling competition in 1997 (the first runner-up was actor Ashton Kutcher).