William Russell, American lawyer and politician, 37th Governor of Massachusetts (died 1896)

William Eustis Russell was a lawyer and Democratic Party politician from Massachusetts. He served four terms as mayor of Cambridge, and was the 37th governor of Massachusetts, serving from 1891 to 1894. He was the state's second youngest-ever chief executive, and was the first Democrat since the American Civil War to serve more than one term in that office.

The governor of the Commonwealth of Massachusetts is the head of government of the Commonwealth of Massachusetts. The governor is the head of the state cabinet and the commander-in-chief of the commonwealth's military forces.