The Hindustan Ambassador is an automobile that was manufactured by Hindustan Motors of India from 1957 to 2014, with improvements and changes over its production lifetime. The Ambassador was based on the Morris Oxford series III model, first made by Morris Motors Limited at Cowley, Oxford in the United Kingdom from 1956 to 1959.

Hindustan Motors is an Indian automotive manufacturer based in Kolkata. It is a part of the Birla Technical Services conglomerate. Hindustan Motors was the largest car manufacturer in India before the rise of Maruti Udyog. Hindustan Motors manufactured the Ambassador and Landmaster motorcars, both immensely popular Indian automobiles from 1957 to 2014.