Siselen is a municipality in the Seeland administrative district in the canton of Bern in Switzerland.

[3] The oldest trace of a settlement in the area are scattered, individual items from the Bronze Age and a Hallstatt grave.

The current church of St. Silvester was built in 1500 and rebuilt or renovated several times between the 17th and 20th centuries.

The Jura water correction project of 1874 drained the marshy Grosses Moos and allowed farming of the rich soil.

[5] The municipality is located on a moraine at the northern edge of the Grosses Moos marsh.

On the following day, 1 January 2010, it joined the newly created Verwaltungskreis Seeland.

[6] The blazon of the municipal coat of arms is Gules an Arrowhead Argent.

[10] Most of the population (as of 2000[update]) speaks German (581 or 94.9%) as their first language, Albanian is the second most common (12 or 2.0%) and Portuguese is the third (5 or 0.8%).

[10] The historical population is given in the following chart:[3][13] The rectory is listed as a Swiss heritage site of national significance.

The entire village of Siselen is part of the Inventory of Swiss Heritage Sites.

In the federal election, a total of 220 votes were cast, and the voter turnout was 48.0%.

In the tertiary sector; 27 or 50.0% were in wholesale or retail sales or the repair of motor vehicles, 8 or 14.8% were in the movement and storage of goods, 2 or 3.7% were in a hotel or restaurant, 1 was in the information industry, 4 or 7.4% were technical professionals or scientists, 6 or 11.1% were in education.

[10] From the 2000 census[update], 47 or 7.7% were Roman Catholic, while 505 or 82.5% belonged to the Swiss Reformed Church.

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

Following the lower Secondary students may attend additional schooling or they may enter an apprenticeship.

[18] During the 2010-11 school year, there were a total of 47 students attending classes in Siselen.