The Nissan Civilian is a single-decker minibus built by Japanese automaker Nissan since 1971. It is primarily available as a public bus and an intercity bus. In Japan, it was exclusive to Nissan Store locations, and replaced the Nissan Echo, which was introduced in 1958. The Echo's chassis code continued to be used on the Civilian (GC340), reflecting their shared underpinnings with the Nissan Caball (C140/240/340).

A minibus, microbus, or minicoach is a passenger-carrying motor vehicle that is designed to carry more people than a multi-purpose vehicle or minivan, but fewer people than a full-size bus. In the United Kingdom, the word "minibus" is used to describe any full-sized passenger-carrying van or panel truck. Minibuses have a seating capacity of between 12 and 30. Larger minibuses may be called midibuses. Minibuses are typically front engine step-in vehicles, although low floor minibuses are particularly common in Japan.