Charles Henry Bigelow (July 13, 1814 – April 15, 1862) of Lowell, Massachusetts was a 19th-century engineer and architect. Born in Watertown, Massachusetts, Bigelow was a graduate of West Point, ranking second in the class of 1835. He married Harriet Briggs, daughter of the late Massachusetts Governor George N. Briggs. He died in New Bedford, Massachusetts in 1862 at the age of 47. On March 31, 1847, Bigelow was one of a group of influential citizens in Lawrence, Massachusetts that founded and chartered the Franklin Library Association, now the Lawrence Free Library. Bigelow was the Association's first president.