Sornetan is a former municipality in the Jura bernois administrative district in the canton of Bern in Switzerland.

Some of the earliest finds are scattered items from the Celtic tribes that lived in the area.

The village was eventually acquired by the college of canons of Moutier-Grandval Abbey.

When the Abbey was suppressed during the Protestant Reformation, Sornetan was placed under the provost of Moutier-Grandval who was under the Prince-Bishop of Basel.

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

The parish church was built in 1708-09 and today is a Swiss heritage site of national significance.

[2] While the village has remained generally agrarian, beginning in the 1970s the services sector began gaining importance.

One of the reasons for this change was the construction, in 1971, of a Swiss Reformed Church meeting and training center in the municipality.

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 Gules a Chevron Or in chief three Mullets of the same one and two and a Base wavy Azure.

[3] Most of the population (as of 2000[update]) speaks French (99 or 87.6%) as their first language, German is the second most common (11 or 9.7%) and Spanish is the third (1 or 0.9%).

In 2011, single family homes made up 43.8% of the total housing in the municipality.

[11] The historical population is given in the following chart:[2][12] The village reformed church is listed as a Swiss heritage site of national significance.

In the federal election, a total of 47 votes were cast, and the voter turnout was 48.0%.

[3] There were 68 residents of the municipality who were employed in some capacity, of which females made up 44.1% of the workforce.

[19] In 2011 a total of 0.8% of the population received direct financial assistance from the government.

[20] From the 2000 census[update], 64 or 56.6% belonged to the Swiss Reformed Church, while 19 or 16.8% were Roman Catholic.