BredaMenarinibus S.p.A. was a bus manufacturer based in Bologna, Italy. The company was established in 1989 through the merger of Bredabus, the bus and coach divisions of Breda Costruzioni Ferroviarie, heir of the consortium Inbus, and Carrozzeria Menarini, established in 1919 in Bologna, anticipating those processes of industrial aggregation that would characterize the bus sector as well as that of industrial vehicles.

Società Italiana Ernesto Breda, more usually referred to simply as Breda, was an Italian mechanical manufacturing company founded by Ernesto Breda in Milan in 1886.