How many French Republics have there been?
There have been five French Republics.
The First Republic was founded on 22 September 1792 during the French Revolution. The First Republic lasted until the declaration of the First Empire in 1804 under Napoleon I, although the form of the government changed several times.
The Fifth Republic is the fifth and current republican constitution of France, introduced on 4 October 1958. The Fifth Republic emerged from the collapse of the French Fourth Republic, replacing the prior parliamentary government with a semi-presidential system. It is France's third-longest-enduring political regime, after the pre-revolutionary Ancien Régime and the Third Republic.