Harold Knutson (October 20, 1880 – August 21, 1953) was a Norwegian-American politician and journalist, who represented Minnesota in the United States House of Representatives from 1917 to 1949 as a member of the Republican Party. From 1919 to 1923 he was the Republican majority whip.
Knutson was born in Skien, in Telemark county, Norway. At the age of 6 he and his family moved to the United States. They initially settled in Chicago, Illinois, but later moved to Sherburne County, Minnesota.
Knutson became the editor for the St. Cloud Daily Journal-Press. Later, he was president of the Northern Minnesota Editorial Association.
From 1917 to 1949 he served as a Republican Party Congressman in the 65th, 66th, 67th, 68th, 69th, 70th, 71st, 72nd, 73rd, 74th, 75th, 76th, 77th, 78th, 79th, and 80th congresses. On April 5, 1917, he voted against declaring war on Germany. He served as the majority whip from 1919 to 1923. In 1947 he headed the House Ways and Means Committee.