Semsales (French: [sɑ̃sɑl]; Arpitan: Semsâles [ʃɛ̃ˈθɑlɛ] ) is a municipality in the district of Veveyse in the Canton of Fribourg in Switzerland .

Semsales is first mentioned about 1100 as septem salis.

Semsales has an area of 29.36 km2 (11.34 sq mi). Of this area, 13.68 km2 (5.28 sq mi) or 46.6% is used for agricultural purposes, while 14.14 km2 (5.46 sq mi) or 48.2% is forested. Of the rest of the land, 1 km2 (0.39 sq mi) or 3.4% is settled (buildings or roads), 0.14 km2 (35 acres) or 0.5% is either rivers or lakes and 0.43 km2 (0.17 sq mi) or 1.5% is unproductive land.

Of the built up area, housing and buildings made up 1.5% and transportation infrastructure made up 1.6%.