Aubonne (French pronunciation: [obɔn] ⓘ) is a municipality in the district of Morges in the canton of Vaud in Switzerland.

Aubonne was the most important town on the north side of the lake between Lausanne and Geneva until the second half of the 15th century.

Since he was allied with the Eidgenossen, the municipality was spared the ravages of the Burgundian Wars in 1476.

When the canton of Vaud was conquered by Bern in 1536, Aubonne came under Bernese domination, but still belonged to the Count of Greyerz until 1553.

In 1670, the city was bought by the Frenchman Jean-Baptiste Tavernier, and in 1685 by Henri Duquesne, who sold it to Bern again in 1701.

On 5 December 2017, Michael I of Romania died in his home in Aubonne.

It is spread in the valley of the river Aubonne, on the edge of the Jura foothill plateau, about 130 m (430 ft) above the surface of Lake Geneva.

The surrounding municipalities are Allaman, Féchy, Pizy, Montherod, Saint-Livres, Lavigny, and Etoy.

[9] The blazon of the municipal coat of arms is Per pale Gules and Or.

[13] Most of the population (as of 2000[update]) speaks French (2,160 or 84.0%), with German being second most common (133 or 5.2%) and Portuguese being third (93 or 3.6%).

[12] The age distribution, as of 2009[update], in Aubonne is; 301 children or 11.0% of the population are between 0 and 9 years old and 345 teenagers or 12.6% are between 10 and 19.

[13] The historical population is given in the following chart:[4][17] The Former Federal Powder Mill, Aubonne Castle, the City Hall and grenette, the D'Aspre House with Orangery, the Manoir et manège are listed as Swiss heritage site of national significance.

The entire town of Aubonne and the Federal Powder Mill are listed as part of the Inventory of Swiss Heritage Sites.

In the 2007 federal election the most popular party was the SP which received 21.08% of the vote.

In the federal election, a total of 861 votes were cast, and the voter turnout was 52.6%.

Because Aubonne does not lie on the Lausanne–Geneva railway built in the 19th century, industrialization began relatively late.

In the 20th century, a precision machine shop, laboratories, furniture manufacturers, and pharmaceutical companies have come to Aubonne.

[13] There were 1,335 residents of the municipality who were employed in some capacity, of which females made up 44.9% of the workforce.

In the tertiary sector; 610 or 49.5% were in wholesale or retail sales or the repair of motor vehicles, 42 or 3.4% were in the movement and storage of goods, 39 or 3.2% were in a hotel or restaurant, 46 or 3.7% were in the information industry, 18 or 1.5% were the insurance or financial industry, 108 or 8.8% were technical professionals or scientists, 54 or 4.4% were in education and 185 or 15.0% were in health care.

[13] From the 2000 census[update], 761 or 29.6% were Roman Catholic, while 1,085 or 42.2% belonged to the Swiss Reformed Church.

In the Vaud cantonal school system, two years of non-obligatory pre-school are provided by the political districts.

[22] During the school year, the political district provided pre-school care for a total of 631 children of which 203 children (32.2%) received subsidized pre-school care.

The canton's primary school program requires students to attend for four years.

The train station of the Lausanne-Geneva railway was opened on 14 April 1858 and lies just outside the municipality in Allaman.