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

[3] The earliest traces of human settlement come from neolithic tools discovered at Wengimoos.

During the Early and High Middle Ages the wooden castle of Guldige Hubel in Übererlenacher guarded the village.

During the Middle Ages, the village of Wengi and the hamlets of Scheunenberg and Waltwil were all part of the municipality of Grossaffoltern and were owned by the House of Kyburg.

[3] Beginning in the 18th century and continuing until World War II, peat was harvested for heating from the Wengimoos bog.

The extensive peat bogs proved to be a difficult obstacle during the amelioration of the Limpach valley between 1944-51.

In 1961, the Wengimoos was made into a nature preserve to protect the delicate bog ecosystem.

[6] The blazon of the municipal coat of arms is Argent three Roses Gules barbed and seeded proper in Pale.

[10] Most of the population (as of 2000[update]) speaks German (530 or 96.0%) as their first language, French is the second most common (10 or 1.8%) and Portuguese is the third (4 or 0.7%).

The historical population is given in the following chart:[3][13] In the 2011 federal election the most popular party was the SVP which received 43% of the vote.

In the tertiary sector; 8 or 17.8% were in wholesale or retail sales or the repair of motor vehicles, 12 or 26.7% were in the movement and storage of goods, 11 or 24.4% were in a hotel or restaurant, 2 or 4.4% were technical professionals or scientists, 5 or 11.1% were in education.

[10] From the 2000 census[update], 39 or 7.1% were Roman Catholic, while 441 or 79.9% 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.

[17] During the 2009-10 school year, there were a total of 73 students attending classes in Wengi.