The Tipo 8B is a luxury passenger car produced by Isotta Fraschini from 1931 to 1936.

The model replaced the Tipo 8A and had installed in it an eight-cylinder in-line displacement of 7372 cm ³ that distributed a power of 150 hp. Before this, the model it replaced had a revised chassis. The transmission was formed by a four-speed gearbox.

There is no certainty on the number of units built, but it is known that 30 were completed, though some sources report that 82 were produced.