Walter Marcus Pierce (May 30, 1861 – March 27, 1954) was an American politician, a Democrat, who served as the 17th Governor of Oregon and a member of the United States House of Representatives from Oregon's 2nd congressional district.
A native of Illinois, he served in the Oregon State Senate before the governorship, and again after leaving the U.S.
House.
Pierce is also the namesake of the United States Supreme Court case of Pierce v.
Society of Sisters on compulsory public education.