Avully is a municipality in the canton of Geneva in Switzerland.

Avully is first mentioned in 1220 as Avulie.

Avully has an area, as of 2009^[update], of 4.61 square kilometers (1.78 sq mi). Of this area, 2.96 km² (1.14 sq mi) or 64.2% is used for agricultural purposes, while 0.69 km² (0.27 sq mi) or 15.0% is forested. Of the rest of the land, 0.68 km² (0.26 sq mi) or 14.8% is settled (buildings or roads), 0.29 km² (0.11 sq mi) or 6.3% is either rivers or lakes and 0.02 km² (4.9 acres) or 0.4% is unproductive land.

Of the built up area, housing and buildings made up 7.8% and transportation infrastructure made up 4.1%. while parks, green belts and sports fields made up 2.0%. Out of the forested land, 11.5% of the total land area is heavily forested and 3.5% is covered with orchards or small clusters of trees. Of the agricultural land, 42.7% is used for growing crops and 15.4% is pastures, while 6.1% is used for orchards or vine crops. All the water in the municipality is flowing water.

The municipality is located in the Champagne region. It consists of the settlements of Avully-Village, Epeisses, Eaumorte and Gennecy..