Bernetz may refer to:

Places Bernetz River, a river in Eeyou Istchee Baie-James, Quebec, Canada Lake Bernetz, a lake in the unorganized territory of Lac-Despinassy in Abitibi-Témiscamingue Lake Bernetz, a lake in the municipality of Lac-Bouchette in Saguenay-Lac-Saint-Jean

People with the name Christian Berentz (1658–1722), also known as Cristiano Bernetz, German Baroque painter

See also Battle of Bernetz Brook, a battle fought in 1758 between Britain and France