The Stresa Front was an agreement made between British, French and Italian leaders in 1935 to reaffirm the Treaty of Locarno, and to declare that the independence of Austria "would continue to inspire their common policy". They also agreed to resist any future attempt by the Germans to change the Treaty of Versailles.

The Stresa Front was triggered by Germany's declaration of its intention to build up an air force, to increase the size of its army to 36 divisions, and to introduce conscription.

The front was not successful. Within two months Britain had signed the Anglo-German Naval Agreement, by which Germany was given the green light to increase the size of its navy and build submarines. Britain had not discussed this with its Stresa partners and the front was seriously damaged. The front collapsed completely with Italy's invasion of Abyssinia.

The Stresa Front takes its name from the Stresa Conference at which it was negotiated.