George Earle Chamberlain Sr. was an American attorney, politician, and public official in Oregon. A native of Mississippi and member of the Democratic Party, Chamberlain's political achievements included appointment followed by election as the first Attorney General of Oregon, a stint as the state's 11th Governor, and two terms in the United States Senate in Washington, DC.

The governor of Oregon is the head of government of Oregon and serves as the commander-in-chief of the state's military forces. The title of governor was also applied to the office of Oregon's chief executive during the provisional and U.S. territorial governments.