The National Convention (French: Convention nationale, [kɔ̃vɑ̃sjɔ̃ nɑsjɔnal]) was the constituent assembly of the Kingdom of France for one day and of the French First Republic for its first three years during the French Revolution, following the two-year National Constituent Assembly and the one-year Legislative Assembly. The National Convention was created after the insurrection of 10 August 1792. It was the first French government organized as a republic, abandoning the monarchy altogether. The Convention sat as a single-chamber assembly from 20 September 1792 to 26 October 1795 (4 Brumaire IV under the Convention's adopted calendar).
The Convention came about when the Legislative Assembly decreed the provisional suspension of King Louis XVI and the convocation of a National Convention to draw up a new constitution with no monarchy. The other major innovation was to decree that deputies to that Convention should be elected by all Frenchmen 21 years old or more, domiciled for a year and living by the product of their labor. The National Convention was, therefore, the first French assembly elected by a suffrage without distinctions of class.