Greenwood County was a county of the Territory of Colorado that existed for four years from 1870 to 1874.
On November 2, 1870, the Colorado General Assembly created Greenwood County from former Cheyenne and Arapaho tribal land and the eastern portion of Huerfano County. On February 6, 1874, the Colorado General Assembly abolished Greenwood County and split its territory between Elbert County and Bent County.