The Nissan Sunny is an automobile built by the Japanese automaker Nissan from 1966 till 2004. In the early 1980s, the brand changed from Datsun to Nissan in line with other models by the company. Although production of the Sunny in Japan ended in 2004, the name remains in use in China and GCC countries for a rebadged version of the Nissan Almera.

Nissan Motor Co. Ltd. is a Japanese multinational automobile manufacturer headquartered in Yokohama, Kanagawa, Japan. The company sells its vehicles under the Nissan and Infiniti brands, and formerly the Datsun brand, with in-house performance tuning products under the Nismo and Autech brands. The company traces back to the beginnings of the 20th century, with the Nissan zaibatsu, now called Nissan Group.