American Car Company was a streetcar manufacturing company based in St. Louis, USA. It was founded in 1891 by William Sutton and Emil Alexander, who had previously founded the Laclede Car Company in 1883 also in St. Louis, and had both got their start working in the streetcar business at St. Louis' horsecar manufacturer the Brownell Car Company.
The American Car Company was a builder of electric powered streetcars. ACC was bought out by the J. G. Brill and Company of Philadelphia in 1902. However, Brill continued to operate the American Car Co. under its own name until 1931. More Birney-type trolleys were built by American Car Co. than any other manufacturer.
The Fort Collins Municipal Railway in Colorado and the Fort Smith Trolley Museum in Arkansas are examples of operations still running these cars today.