Benld is a city in Macoupin County, Illinois, United States. The population was 1,541 at the 2000 census. The name derives from founder Benjamin L. Dorsey (d. June 19, 1895). Dorsey was responsible for gaining the land on which the town was built and coal mining rights. When it came time to name the village, he took the combination of his first name and his middle and last initial.