Brenles is a former municipality in the district Broye-Vully in the canton of Vaud in Switzerland. In 2017 the former municipalities of Brenles, Chesalles-sur-Moudon, Cremin, Forel-sur-Lucens and Sarzens merged into the municipality of Lucens. Brenles is first mentioned in 1247 as Brenles. Brenles had an area, , of . Of this area, or 64.8% is used for agricultural purposes, while or 30.3% is forested. Of the rest of the land, or 3.9% is settled (buildings or roads) and or 0.5% is unproductive land. Of the built up area, housing and buildings made up 1.0% and transportation infrastructure made up 2.9%. Out of the forested land, 27.9% of the total land area is heavily forested and 2.3% is covered with orchards or small clusters of trees. Of the agricultural land, 43.3% is used for growing crops and 20.6% is pastures. The former municipality was part of the Moudon District until it was dissolved on 31 August 2006, and Brenles became part of the new district of Broye-Vully. The municipality is located on the border with the Canton of Fribourg. The blazon of the municipal coat of arms is Vert, a key Argent bendy. Brenles had a population () of 144. , 4.2% of the population are resident foreign nationals. Over the last 10 years (1999–2009 ) the population has changed at a rate of 4.5%. It has changed at a rate of 0% due to migration and at a rate of 3.8% due to births and deaths. Most of the population () speaks French (149 or 91.4%), with German being second most common (10 or 6.1%) and Italian being third (2 or 1.2%). Of the population in the municipality 68 or about 41.7% were born in Brenles and lived there in 2000. There were 42 or 25.8% who were born in the same canton, while 39 or 23.9% were born somewhere else in Switzerland, and 10 or 6.1% were born outside of Switzerland. In there was 1 live birth to Swiss citizens. Ignoring immigration and emigration, the population of Swiss citizens increased by 1 while the foreign population remained the same. There was 1 non-Swiss woman who immigrated from another country to Switzerland.