Montaubion-Chardonney was a municipality in the district Gros-de-Vaud in the canton of Vaud in Switzerland. The municipalities of Villars-Tiercelin, Montaubion-Chardonney, Sottens, Villars-Mendraz and Peney-le-Jorat merged on 1 July 2011 into the new municipality of Jorat-Menthue. Montaubion-Chardonney is first mentioned in 1200 as in Monte Albeonis. In 1223 Montaubion was mentioned as Montalbium and in 1223 Chardonney was mentioned as Chardenai. Montaubion-Chardonney has an area, , of . Of this area, or 62.6% is used for agricultural purposes, while or 30.8% is forested. Of the rest of the land, or 5.7% is settled (buildings or roads). Of the built up area, housing and buildings made up 2.8% and transportation infrastructure made up 2.8%. Out of the forested land, 28.0% of the total land area is heavily forested and 2.8% is covered with orchards or small clusters of trees. Of the agricultural land, 48.3% is used for growing crops and 13.7% is pastures. The municipality was part of the Moudon District until it was dissolved on 31 August 2006, and Montaubion-Chardonney became part of the new district of Gros-de-Vaud. The village is located in the heart of the Jorat region. It consists of two hamlets on the right bank of the Mentue. The blazon of the municipal coat of arms is Gules, from a Coupeaux rising a Thistle Argent. Montaubion-Chardonney has a population () of 69. , 8.2% of the population are resident foreign nationals. Over the last 10 years (1999-2009 ) the population has changed at a rate of -10.4%. It has changed at a rate of -11.7% due to migration and at a rate of -1.3% due to births and deaths. Most of the population () speaks French (69 or 93.2%), with German being second most common (2 or 2.7%) and Italian being third (1 or 1.4%). Of the population in the municipality 19 or about 25.7% were born in Montaubion-Chardonney and lived there in 2000. There were 35 or 47.3% who were born in the same canton, while 11 or 14.9% were born somewhere else in Switzerland, and 9 or 12.2% were born outside of Switzerland.