Columbia Lancaster (August 26, 1803 – September 15, 1893) was an American lawyer and politician who served as the first Delegate from the Territory of Washington to the United States House of Representatives.

[3] He took up his residence near the mouth of the Lewis River, Oregon Territory (present-day State of Washington).

[4] The rival minority assembly continued to meet in Oregon City for two weeks, marked by the spectacle of Lancaster making and seconding his own motions in the "Council" himself.

[4] Lancaster resigned his Council seat in the fall of 1852 and was replaced at a special election held December 7 of that year.

[5] When the Washington Territory was admitted to representation, he was elected as a Democrat to the Thirty-third Congress and served from April 12, 1854 to March 3, 1855.