Lisbon Falls is a census-designated place (CDP) in the town of Lisbon, located in Androscoggin County, Maine, United States. The population of Lisbon Falls was 4,100 at the 2010 census. It is included in both the Lewiston-Auburn, Maine, metropolitan statistical area and the Lewiston-Auburn, Maine, Metropolitan New England city and town area.
Abenaki Indians called the falls Anmecangin, meaning "much fish". The area was once part of Little River Plantation, a portion of which was incorporated in 1799 as Thompsonborough, then renamed in 1802 after Lisbon, Portugal. In 1806, Lisbon annexed the remainder of Little River Plantation. With water power from the Androscoggin River, Lisbon Falls became a small mill town. Before it burned down in 1987, the Worumbo Mill was the main mill in Lisbon Falls. It had been incorporated in 1864, and was world-famous for its woolens. Especially well known were its vicuna wool products, which became famous when President Eisenhower's Chief of Staff, Sherman Adams, received a vicuna sport coat as a gift from a wealthy industrialist and had to resign due to the resulting scandal.