Halikko (Finnish pronunciation: [ˈhɑlikːo]) is a former municipality of Finland that existed until December 31, 2008.

The municipality had a population of 9,491 (2004-12-31) and covered an area of 357.31 km2 (excluding sea) of which 0.52 km2 was inland water.

One of the prehistoric villages, Rikala, became an important trade and meeting place on the Finnish coast during the Iron Age.

Manors of Åminne, Vuorentaka [2] and Wiurila were founded and they became powerful owners in Halikko.

On January 1, 2009, Halikko ceased to exist as it was attached to the City of Salo.