Marsens (French pronunciation: [maʁsɑ̃s]) is a municipality in the district of Gruyère in the canton of Fribourg in Switzerland.

Archaeology in the village uncovered a Gallo-Roman temple dedicated to the god, which was destroyed in 260.

While this region's economy has long been based in agriculture, Marsens today is developing more artisans and industry.

The village is expanding as new modern homes are built, but Marsens' pastoral view of the mountains and the sound of nearby cows' bells remains.

The municipality comprises the small villages of Marsens and its neighbor Vuippens.

The blazon of the municipal coat of arms is Pally of Six Argent and Gules[6] Marsens has a population (as of December 2020[update]) of 2,034.

[9] Most of the population (as of 2000[update]) speaks French (1,041 or 92.7%) as their first language, German is the second most common (45 or 4.0%) and Italian is the third (11 or 1.0%).

[9] The historical population is given in the following chart:[4][13] Baillival (Bailiff's) Castle, the Saint-Ignace Chapel and the Philiponna, farm house in Vuippens at Place Saint-Sulpice 6 are listed as Swiss heritage site of national significance.

The entire Vuippens area is part of the Inventory of Swiss Heritage Sites.

The number of jobs in the primary sector was 32, of which 28 were in agriculture and 4 were in forestry or lumber production.

In the tertiary sector; 29 or 6.0% were in wholesale or retail sales or the repair of motor vehicles, 4 or 0.8% were in the movement and storage of goods, 16 or 3.3% were in a hotel or restaurant, 1 was in the information industry, 2 or 0.4% were the insurance or financial industry, 6 or 1.2% were technical professionals or scientists, 14 or 2.9% were in education and 400 or 82.5% were in health care.

[9] From the 2000 census[update], 902 or 80.3% were Roman Catholic, while 61 or 5.4% belonged to the Swiss Reformed Church.

The wettest month is June during which time Marsens receives an average of 134 mm (5.3 in) of rain or snow.

The driest month of the year is February with an average of 78 mm (3.1 in) of precipitation over 10.2 days.

This is followed by three years of obligatory lower Secondary school where the students are separated according to ability and aptitude.

The upper Secondary school is divided into gymnasium (university preparatory) and vocational programs.

After they finish the upper Secondary program, students may choose to attend a Tertiary school or continue their apprenticeship.