Chigny is a municipality in the Swiss canton of Vaud, located in the district of Morges. Chigny is first mentioned in 1221 as Chinie. Chigny has an area, , of . Of this area, or 73.3% is used for agricultural purposes, while or 6.7% is forested. Of the rest of the land, or 16.7% is settled (buildings or roads). Of the built up area, housing and buildings made up 10.0% and transportation infrastructure made up 6.7%. Out of the forested land, 5.6% of the total land area is heavily forested and 1.1% is covered with orchards or small clusters of trees. Of the agricultural land, 43.3% is used for growing crops and 1.1% is pastures, while 28.9% is used for orchards or vine crops. The municipality was part of the old Morges District until it was dissolved on 31 August 2006, and Chigny became part of the new, expanded district of Morges. The municipality is located on the right bank of the Morges river. The blazon of the municipal coat of arms is Azure, a Chevron Argent between three Grapes Bunches two and one Or. Chigny has a population () of . , 25.5% of the population are resident foreign nationals. Over the last 10 years (1999–2009 ) the population has changed at a rate of 9.5%. It has changed at a rate of 3.3% due to migration and at a rate of 5.5% due to births and deaths. Most of the population () speaks French (220 or 85.3%), with English being second most common (11 or 4.3%) and German being third (9 or 3.5%). There are 3 people who speak Italian. Of the population in the municipality 58 or about 22.5% were born in Chigny and lived there in 2000. There were 100 or 38.8% who were born in the same canton, while 37 or 14.3% were born somewhere else in Switzerland, and 62 or 24.0% were born outside of Switzerland. In there were 2 live births to Swiss citizens and 2 births to non-Swiss citizens. Ignoring immigration and emigration, the population of Swiss citizens increased by 2 while the foreign population increased by 2. There was 1 Swiss woman who emigrated from Switzerland.