The Autobianchi A112 is a supermini produced by the Italian automaker Autobianchi. It was developed using a shrunken version of the contemporary Fiat 128's platform. The mechanicals of the A112 subsequently underpinned the Fiat 127. It was introduced in November 1969, as a replacement for the Bianchina and Primula, and was built until 1986, when it made way for the more modern Autobianchi Y10. Over 1.2 million A112s were produced in Autobianchi's Milan factory.

The B-segment is the second smallest of the European segments for passenger cars, between the A-segment and C-segment, and commonly described as "small cars". The B-segment is the largest segment in Europe by volume, accounting for 20 percent of total car sales in 2020 according to JATO Dynamics.