William Holden Willson (April 14, 1805 – April 17, 1856) was a pioneer of the U.S.
state of Oregon and the founder of its capital city, Salem.
A native of New Hampshire, he immigrated to the Oregon Country in 1837 to work at the Methodist Mission, and there would participate in the Champoeg Meetings.
Willson served as the first treasurer of the Provisional Government of Oregon.