Sasina is a village on the north coast of Savai'i island in Samoa. It is located in the political district of Gagaifomauga. The population is 550 (2006 Census).
The village is part of a conservation area which includes the village of Aopo. There is a primary school with a new assembly hall renovated by engineers from the United States, Australia and New Zealand under the US Navy's Pacific Partnership programme of the Pacific Fleet.
In 2008, an American company South Pacific Development Group (SPDG) obtained a 120-year lease for 600 acres (2.4 km2) of prime oceanfront customary land in Sasina, to build a luxury resort estimated to cost $450 – $500 million US dollars. The announcement raised concern among environmental group O Le Si'osi'omaga Society. The size of the acreage and duration of the lease is unprecedented in Samoa, where 80% of the land is customary, 6% freehold and the rest under the government.