Shefa is one of the six provinces of Vanuatu, located in the center of the country and including the islands of Epi and Efate and the Shepherd Islands.

The province's name is derived from the initial letters of SHepherd and EFAte.

It has a population of 78,723 people and an area of 1,455 km² (562 sq mi). Its capital is Port Vila, which is also the capital of the nation.

Sanma Province are subdivided into nineteen area councils, which are further subdivided into populated places (i.e.: villages, communities, etc.).

In the 1860s, Havanna Harbour, north Efate, was the centre of development in Shefa, with cotton plantations the focus. With dwindling prices for cotton, agricultural administrators turned to maize and coffee, before settling mainly with coconuts and cattle which are the main agricultural products today.

The French and British continued to have conflicting interests in Vanuatu (then known as New Hebrides) and decided upon a Joint Naval Commission, or Condominium, in 1887, with the Joint Court opened in 1910, it is still used today.

Shefa Province was a strategic location during World War II for the mainly American troops. Major instalments were placed on northern Efate along Havanna Harbour including Tanaliou, Siviri and Saama, and some outer Efate Islands including Moso Island.

In December 2021, the province was first to recognize Benny Wenda as the president of the transitional government of West Papua.