Map - Khánh Hòa Province (Tỉnh Khánh Hòa)

Khánh Hòa is a province of Vietnam located in the South Central Coast. It has a population of 1,147,000 and spans an area of 5,197 km². Its capital is Nha Trang. Khánh Hòa is the site of Bảo Đại's summer home, the Pasteur Institute of Nha Trang, the Institute of Oceanography, the Institute of Vaccines and Biological Substances, and was headquarters of the US Army's Special Forces ("the Green Berets") during the Vietnam War in the late 1950s and 1960s. Cam Ranh Bay port is on land closest to a deep sea drop in Vietnam - the best site for submarine bases in Vietnam. An ancient temple of Champa is on the north side of Nha Trang.

The site of what is now Khánh Hòa had been within the territory of the Champa Kingdom before it was annexed to Đại Việt's (Vietnam's) territory. In 1653, one of the Nguyễn lords, Nguyễn Phúc Tần, sent his troops to occupy Phan Rang. The Champa king Bà Tấm surrendered to Nguyễn's troops and ceded an area from the east of the Phan Rang River to Phú Yên to the Nguyễn lord. The Nguyễn lord accepted the ceded territory and set up the Thái Khang garrison and divided it into two districts: Thái Khang and Diên Ninh.

In 1832, under the rule of Emperor Minh Mạng, this area was renamed Khánh Hòa and was divided into two districts, Phủ Diên Khánh and Phủ Ninh Hòa, which between them had a total of four counties: Phước Điền and Vĩnh Xương counties; and Quảng Phước and Tân Định counties, respectively.

Under French Indochina, the provincial capital was located in Diên Khánh Citadel, but it was relocated to Nha Trang in 1945.

During the Vietnam War, Khánh Hòa was a hub of military activity for the Republic of Vietnam army (ARVN), the Republic of Vietnam Navy, the Republic of Vietnam Air Force, and for the U.S. Pacific Air Forces (USAF), particularly in Cam Ranh Bay and at the Nha Trang Air Base. The II Corp. headquarters were located in Nha Trang and populated by general and field officers, intelligence groups and ARVN liaisons.

After the communists' victory and the Fall of Saigon on April 30, 1975, the communist regime merged two provinces, Phú Yên and Khánh Hòa, into Phú Khánh province on 29 October 1975. In 1977, Nha Trang was upgraded to city status. In 1982, the National Assembly decided to incorporate the Spratly Islands into Phú Khánh province. On June 30, 1989, the National Assembly reversed its previous decision and split Phú Khánh province into two provinces as they were before.