William Murdock (c.1720—October 17, 1769) was a Scottish-born American statesman in colonial Maryland. During the tensions leading up to the American Revolution he was an important spokesman for the rights of the colonists. He was a delegate representing Maryland in the Stamp Act Congress of 1765. Murdock was the son of Reverend George Murdock, who brought his family from Scotland to Prince George's County, Maryland, in British America about 1726.