Saint-Vallier-de-Thiey (French pronunciation: [sɛ̃ valje də tjɛ]; Provençal: Sant Valier de Tièir) is a commune in the Alpes-Maritimes department in southeastern France.

It is located some 12 kilometres northwest of the famed perfume centre of Grasse on the D6085 highway.

The most impressive dolmen is called "Verdoline," just south of the village; it may date from as early as 4500 BC and its chamber measures some 1½ X 2 metres (5 X 6½ feet).

Along the roads from Saint-Vallier-de-Thiey toward Saint-Cézaire-sur-Siagne and going west into the valley of the Siagne River a number of ancient tumuli burial mounds many may be seen.

The main surrounding peaks are: The following rivers flow through Saint-Vallier-de-Thiey: The village has a purification plant with a capacity of 2500 equivalent-inhabitants.