Hindustan Motors is an Indian automotive manufacturer based in Kolkata, West Bengal, India. It is a part of the Birla Technical Services conglomerate. The company was the largest car manufacturer in India before the rise of Maruti Udyog.

Hindustan Motors manufactured the Ambassador and Landmaster motorcars (based on 1956 Morris Oxford series III), both immensely popular Indian automobiles from 1957 to 2014.

One of the original three car manufacturers in India, founded in 1942 by Mr. B.M. Birla, it was a leader in car sales until the 1980s, when the industry was opened up from protection. All through its history, the company has depended on government patronage for its sales and for survival by eliminating competition. Manoj Jha was the managing director who stepped down from the post on 21 February 2012.

On 11 February 2017, Hindustan Motors executed an agreement with Peugeot SA for the sale of the Ambassador brand, including the trademarks, for a consideration of ₹80 crore. The tie-up entails two joint venture agreements between the companies of the two groups.