Tây Ninh is a town in southwestern Vietnam. It is the capital of Tây Ninh province, which encompasses the town and much of the surrounding farmland. Tây Ninh is approximately 90 km to the northwest of Hồ Chí Minh, Vietnam's largest city. As of 2003, the district had a population of 126,370.
The district covers 137 km². The city is most famous for being the home of the Cao Đài religion, an indigenous Vietnamese faith that includes the teachings of the major world religions. The Cao Đài religion's Holy See, built between 1933 and 1955, is located around 5 km to the east of Tây Ninh’s town center