Avenue Foch is an avenue in the 16th arrondissement of Paris, France, named after World War I Marshal Ferdinand Foch in 1929. Previously it was known as the Avenue du Bois de Boulogne. It is one of the most prestigious streets in Paris, as well as one of the most expensive addresses in the world, home to many grand city palaces, including ones belonging to the Onassis and Rothschild families. The Rothschilds once owned numbers 19–21.

The 16th arrondissement of Paris is the westernmost of the 20 arrondissements of Paris, the capital city of France. Located on the Right Bank, it is adjacent to the 17th and 8th arrondissements to the northeast, as well as to Boulogne-Billancourt, Hauts-de-Seine to the southwest. Opposite the Seine are the 7th and 15th arrondissements.