Brügglen is a former municipality in the district of Bucheggberg, in the canton of Solothurn, Switzerland.

On 1 January 2014 the former municipalities of Brügglen, Tscheppach, Aetingen, Aetigkofen, Bibern (SO), Gossliwil, Hessigkofen, Mühledorf (SO), Küttigkofen, Kyburg-Buchegg merged into the new municipality of Buchegg.

[4] The former municipality is located in the Bucheggberg district, on a small plateau in the Mittelbucheggberg.

The blazon of the municipal coat of arms is Gules three Ears Or with four leaves of the same issuant from a Mount of 3 Coupeaux Vert and in Chief a Chevron embowed of the second.

[3] Most of the population (as of 2000[update]) speaks German (185 or 98.9%), with Italian being second most common (1 or 0.5%) and Turkish being third (1 or 0.5%).

Ignoring immigration and emigration, the population of Swiss citizens and foreign residents remained the same.

[6] The age distribution, as of 2000[update], in Brügglen is; 14 children or 7.5% of the population are between 0 and 6 years old and 32 teenagers or 17.1% are between 7 and 19.

[3] The historical population is given in the following chart:[2][11] In the 2007 federal election the most popular party was the SP which received 29.74% of the vote.

In the federal election, a total of 89 votes were cast, and the voter turnout was 56.0%.

[3] There were 102 residents of the municipality who were employed in some capacity, of which females made up 43.1% of the workforce.

[3] From the 2000 census[update], 18 or 9.6% were Roman Catholic, while 141 or 75.4% belonged to the Swiss Reformed Church.

[7] As of 2000[update], there were 30 students from Brügglen who attended schools outside the municipality.