Robert Iain Colin "Bob" Billingham (December 10, 1957 – March 30, 2014) was an American competitive sailor and Olympic silver medalist. Billingham was born in London, England. At the 1988 Summer Olympics, Billingham finished in second place in the soling class along with his partners John Kostecki and William Baylis. Billingham graduated from Amherst College (1979).