The Mercedes-Benz O371 were a series of buses produced by Mercedes-Benz in the 1980s and 1990s. The O371 was produced in Brazil as a replacement there to the O303.

The O371 was available both integral and with bodies by Brazilian manufacturers Marcopolo and Busscar. The two main product lines were for coaches, known as the O371Rxx, and for urban buses, known as the O371Ux.