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

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

Of the rest of the land, 0.4 km2 (0.15 sq mi) or 14.1% is settled (buildings or roads), 0.04 km2 (9.9 acres) or 1.4% is either rivers or lakes.

while parks, green belts and sports fields made up 7.4%.

[3] Most of the population (as of 2000[update]) speaks German (263 or 96.3%), with French being second most common (7 or 2.6%) and English being third (2 or 0.7%).

[6] The age distribution, as of 2000[update], in Aetingen is; 20 children or 7.3% of the population are between 0 and 6 years old and 51 teenagers or 18.7% 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 FDP which received 39.64% of the vote.

In the federal election, a total of 89 votes were cast, and the voter turnout was 39.0%.

[3] There were 135 residents of the municipality who were employed in some capacity, of which females made up 40.0% of the workforce.

The number of jobs in the primary sector was 11, of which 9 were in agriculture and 2 were in forestry or lumber production.

In the tertiary sector; 3 or 7.9% were in wholesale or retail sales or the repair of motor vehicles, 10 or 26.3% were in a hotel or restaurant, 4 or 10.5% were technical professionals or scientists, 3 or 7.9% were in education.

[3] From the 2000 census[update], 21 or 7.7% were Roman Catholic, while 212 or 77.7% belonged to the Swiss Reformed Church.