The Le Brethon was Kenney-class gunboat of the French Navy. She served in the Far East, notably during the French campaign against Korea of 1866.
Started as Aigrette upon plans by engineer Verny, using a steam engine cannibalised from Salve, the ship was renamed Le Brethon on 25 September 1863, after Lieutenant Albert Édouard Le Brethon de Caligny.
Le Brethon was commissioned in Shanghai on 9 November 1864 and appointed to the Cochinchina Division. Decommissioned on 1 June 1865, she was reactivated on 1 March 1866 and took part in the French campaign against Korea under Huché de Cintré.