Vạn Ninh is a rural district of Khánh Hòa province in the South Central Coast region of Vietnam.

Vạn Ninh is the northernmost district of Khánh Hòa.

It is bordered to the north by Phú Yên province, and to the south by Ninh Hòa.

East of Vạn Ninh is Vân Phong bay (South China Sea).

This article about a location in Khánh Hòa Province, Vietnam is a stub.