Douglass is a city in Butler County, Kansas, United States. As of the 2010 census, the city population was 1,700.
In 1877, the Florence, El Dorado, and Walnut Valley Railroad Company built a branch line from Florence to El Dorado, in 1881 it was extended to Douglass, and later to Arkansas City. The line was leased and operated by the Atchison, Topeka and Santa Fe Railway. The line from Florence to El Dorado was abandoned in 1942. The original branch line connected Florence, Burns, De Graff, El Dorado, Augusta, Douglass, Rock, Akron, Winfield, Arkansas City.
In 2010, the Keystone XL Pipeline was constructed about 1.8 miles west of Douglass, north to south through Butler County, with much controversy over tax exemption and environmental concerns (if a leak ever occurs).