Constantine is a former municipality in the district of Broye-Vully in the canton of Vaud in Switzerland.
The municipalities of Bellerive, Chabrey, Constantine, Montmagny, Mur, Vallamand and Villars-le-Grand merged on 1 July 2011 into the new municipality of Vully-les-Lacs.
Constantine is first mentioned in 1228 as Costantina.
Constantine has an area, , of . Of this area, or 68.7% is used for agricultural purposes, while or 14.2% is forested. Of the rest of the land, or 14.9% is settled (buildings or roads), or 1.8% is either rivers or lakes and or 0.4% is unproductive land.
Of the built up area, housing and buildings made up 7.8% and transportation infrastructure made up 2.8%. while parks, green belts and sports fields made up 3.6%. Out of the forested land, 12.8% of the total land area is heavily forested and 1.4% is covered with orchards or small clusters of trees. Of the agricultural land, 55.9% is used for growing crops and 7.8% is pastures, while 5.0% is used for orchards or vine crops. All the water in the municipality is flowing water.
The municipality was part of the Avenches District until it was dissolved on 31 August 2006, and Constantine became part of the new district of Broye-Vully.
The municipality is located on the southern slope of Mont Vully. It consists of the village of Constantine and the southern portion of the village of Salavaux.
The blazon of the municipal coat of arms is Argent, a Branch palewise with five Leaves Vert.
Constantine has a population () of 301. , 8.5% of the population are resident foreign nationals. Over the last 10 years (1999–2009 ) the population has changed at a rate of 14.4%. It has changed at a rate of 17.1% due to migration and at a rate of -2.7% due to births and deaths.
Most of the population () speaks French (232 or 82.9%), with German being second most common (30 or 10.7%) and Portuguese being third (10 or 3.6%).
Of the population in the municipality 91 or about 32.5% were born in Constantine and lived there in 2000. There were 82 or 29.