Lussy-sur-Morges is a municipality in the Swiss canton of Vaud, located in the Morges district. Lussy-sur-Morges is first mentioned in 1026 as in villa Luciaco. Lussy-sur-Morges has an area, , of . Of this area, or 74.8% is used for agricultural purposes, while or 13.2% is forested. Of the rest of the land, or 12.0% is settled (buildings or roads), or 0.9% is either rivers or lakes. Of the built up area, housing and buildings made up 9.0% and transportation infrastructure made up 2.1%. Out of the forested land, all of the forested land area is covered with heavy forests. Of the agricultural land, 58.5% is used for growing crops and 5.6% is pastures, while 10.7% is used for orchards or vine crops. All the water in the municipality is flowing water. The municipality was part of the Morges District until it was dissolved on 31 August 2006, and Lussy-sur-Morges became part of the new district of Morges. It consists of the village of Lussy-sur-Morges and the hamlet of Coinsin, which was known in the 15th and 16th Centuries as Saint-André. The blazon of the municipal coat of arms is Per pale: 1. Gules, a Cross bottony Argent; Azure, a Key Or. Lussy-sur-Morges has a population () of . , 15.4% of the population are resident foreign nationals. Over the last 10 years (1999–2009 ) the population has changed at a rate of 0.3%. It has changed at a rate of 7.9% due to migration and at a rate of -7.2% due to births and deaths. Most of the population () speaks French (507 or 87.7%), with German being second most common (26 or 4.5%) and English being third (20 or 3.5%). There are 3 people who speak Italian. Of the population in the municipality 124 or about 21.5% were born in Lussy-sur-Morges and lived there in 2000. There were 217 or 37.5% who were born in the same canton, while 110 or 19.0% were born somewhere else in Switzerland, and 118 or 20.4% were born outside of Switzerland. In there were 3 live births to Swiss citizens and 1 birth to non-Swiss citizens, and in same time span there were 4 deaths of Swiss citizens.