Plagne (French pronunciation: [plaɲ]) is a former municipality in the Jura bernois administrative district in the canton of Bern in Switzerland.

[2] In 1311 Plagne was part of a fief owned by the Basel Cathedral that was granted to Bourkard de La Roche.

It was part of the seigniory of Erguel which was owned by the Prince Bishop of Basel.

After Napoleon's defeat and the Congress of Vienna, Plagne was assigned to the Canton of Bern in 1815.

At the end of the 18th Century many residents began making watch parts in home workshops.

Beginning in the 1970s the village's population grew rapidly as commuters to Biel/Bienne moved out to Plagne.

On the following day, 1 January 2010, it joined the newly created Arrondissement administratif Jura bernois.

[5] The blazon of the municipal coat of arms is Per pale Or and Gules overall three Cauldrons counterchanged.

[3] Most of the population (as of 2000[update]) speaks French (300 or 76.3%) as their first language, German is the second most common (83 or 21.1%) and Italian is the third (3 or 0.8%).

In the tertiary sector; 2 or 8.0% were in wholesale or retail sales or the repair of motor vehicles, 4 or 16.0% were in the movement and storage of goods, 6 or 24.0% were in a hotel or restaurant, 2 or 8.0% were technical professionals or scientists, 3 or 12.0% were in education and 3 or 12.0% were in health care.

[3] From the 2000 census[update], 55 or 14.0% were Roman Catholic, while 270 or 68.7% 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.

[14] During the 2010–11 school year, there were a total of 19 students attending classes in Plagne.