Bossey (French pronunciation: [bɔsɛ]; Arpitan: Bossè) is a commune in the Haute-Savoie department in the Auvergne-Rhône-Alpes region in Eastern France.

Located on the Swiss border, it had a population of 1,031 as of 2018.

Bossey is the birthplace of poet Jean-Vincent Verdonnet (1923–2013).

Philosopher and political theorist Jean-Jacques Rousseau (1712–1778) lived in the village between 1722 and 1724.