The Constitution Party of Oregon was first formed in August 1952 by Louise Gronnert, Gladys Whelen, and Virgil Holland.

Headquartered in Portland, its stated purpose was to advance and promote interest in the U.S. constitution in schools and elsewhere.

Its nominee won 31% of the vote in a state legislative race where the Republican Party did not nominate a candidate.

[11] Also in 2002, party chairman Bob Eckstrom pledged support for Lon Mabon of the Oregon Citizens Alliance when the latter was jailed for contempt of court.

[12] In 2006 the Constitution nominee for Governor of Oregon was former TV anchor Mary Starrett, who ran on an anti-abortion platform.

[18] In 2008 the Constitution nominee for the U.S. Senate, Doug Brownlow, was expected to play a "spoiler" role in the contest between incumbent Gordon Smith and challenger Jeff Merkley.

Members of the Constitution Party protested funding of abortions by the Oregon Health Plan in 2009.