Sarzens is a former municipality in the district Broye-Vully in the canton of Vaud in Switzerland. In 2017 the former municipalities of Sarzens, Brenles, Chesalles-sur-Moudon, Cremin, Forel-sur-Lucens merged into the municipality of Lucens. Sarzens is first mentioned around 996-1017 as villa sarningis. In 1261 it was mentioned as Sarsens. Sarzens had an area, , of . Of this area, or 76.4% is used for agricultural purposes, while or 15.3% is forested. Of the rest of the land, or 9.0% is settled (buildings or roads). Of the built up area, housing and buildings made up 3.5% and transportation infrastructure made up 4.9%. Out of the forested land, all of the forested land area is covered with heavy forests. Of the agricultural land, 61.8% is used for growing crops and 13.2% is pastures, while 1.4% is used for orchards or vine crops. The former municipality was part of the Moudon District until it was dissolved on 31 August 2006, and Sarzens became part of the new district of Broye-Vully. The former municipality is located in the heights above the Broye valley, between Moudon and Lucens. The blazon of the municipal coat of arms is Gules, three Bees Or two and one. Sarzens had a population () of 80. , 11.8% of the population are resident foreign nationals. Over the last 10 years (1999–2009 ) the population has changed at a rate of 26.6%. It has changed at a rate of 32.8% due to migration and at a rate of 6.3% due to births and deaths. Most of the population () speaks French (57 or 95.0%), with Portuguese being second most common (2 or 3.3%) and German being third (1 or 1.7%). Of the population in the municipality 21 or about 35.0% were born in Sarzens and lived there in 2000. There were 27 or 45.0% who were born in the same canton, while 7 or 11.7% were born somewhere else in Switzerland, and 5 or 8.3% were born outside of Switzerland. In there were no live births to Swiss citizens. Ignoring immigration and emigration, the population of Swiss citizens remained the same while the foreign population remained the same.