A charabanc or "char-à-banc" /ˈʃærəbæŋk/ (often pronounced "sharra-bang" in colloquial British English) is a type of horse-drawn vehicle or early motor coach, usually open-topped, common in Britain during the early part of the 20th century. It has "benched seats arranged in rows, looking forward, commonly used for large parties, whether as public conveyances or for excursions". It was especially popular for sight-seeing or "works outings" to the country or the seaside, organised by businesses once a year. The name derives from the French char à bancs ("carriage with benches"), the vehicle having originated in France in the early 19th century.

Although the vehicle has not been common on the roads since the 1920s, a few signs survive from the era; a notable example at Wookey Hole in Somerset warns that the road to the neighbouring village of Easton is unsuitable for charabancs. The word is in common usage especially in Northern England in a jocular way referring to works outings by coach.

In Australia a modern similar type of bus or motorcoach, with two lateral doors for each row of seats, survived up to the 1970s and was referred to as side loader bus; but all or most of them were not open-topped. One such bus based in Echuca, Victoria, has been restored and is used at the Port of Echuca on some public holidays and special events.

Buses with similar arrangement of doors and seats are a common equipment for the antiriot squads of many police forces, as the arrangement lends itself to the squad exiting the vehicle quickly.

Introduced in the 1830s as a French sporting vehicle, the char à bancs was popular at race meetings and for hunting or shooting parties where it served as a mobile grandstand. It could be pulled by a four-in-hand team of horses or a pair in pole gear. It had two or more rows of crosswise bench seats, plus a slightly lower rear seat for a groom, and most also had a slatted trunk for luggage. Initially used by the wealthy, they were later enlarged with more seats for school or works excursions and tourist transport, as a cheaper version of the tourist coach. The first charabanc in Britain was presented to Queen Victoria by Louis Philippe of France and is preserved in the Royal Mews.

Before the First World War, motor charabancs were used mainly for day trips, as they were not comfortable enough for longer journeys, and were largely replaced by motor buses in the 1920s.

The charabanc of the 1920s tended to last only a few years. It was normal at the time for the body to be built separately from the motor chassis, and some were fitted in summer only; a second goods body would be fitted in its place in winter to keep the vehicle occupied.

Charabancs were normally open-top, with a large canvas folding hood stowed at the rear in case of rain, much like a convertible motor car. If rain started, this had to be pulled into position, a very heavy task, and it was considered honourable for the male members of the touring party to assist in getting it into position. The side windows would be of mica (a thin layer of quartz-like stone).