A horsecar, or horse-drawn tram, is an animal-powered (usually horse) tram or streetcar.
The horse-drawn tram (horsecar) was an early form of public rail transport that developed out of industrial haulage routes that had long been in existence, and from the omnibus routes that first ran on public streets in the 1820s, using the newly improved iron or steel rail or 'tramway'. These were local versions of the stagecoach lines and picked up and dropped off passengers on a regular route, without the need to be pre-hired. Horsecars on tramlines were an improvement over the omnibus, as the low rolling resistance of metal wheels on iron or steel rails (usually grooved from 1852 on) allowed the animals to haul a greater load for a given effort than the omnibus and gave a smoother ride. The horse-drawn streetcar combined the low cost, flexibility, and safety of animal power with the efficiency, smoothness, and all-weather capability of a rail right-of-way.
The first tram services in the world were started by the Swansea and Mumbles Railway in Wales, using specially designed carriages on an existing tramline built for horse-drawn freight dandies. Fare-paying passengers were carried on a line between Oystermouth, Mumbles and Swansea Docks from 1807. The Gloucester and Cheltenham Tramroad (1809) carried passengers although its main purpose was freight.