Les deux journées, ou Le porteur d'eau (The Two Days, or The Water Carrier) is an opera in three acts by Luigi Cherubini with a libretto by Jean-Nicolas Bouilly.

It takes the form of an opéra comique, meaning not that the subject matter is humorous, but that the piece is a mixture of spoken dialogue and musical numbers.

Bouilly claimed he took the story from a real-life incident during the French Revolution but, for fear of censorship, he moved the action back to 1647 and the time of Cardinal Mazarin.

Les deux journées is sometimes considered Cherubini's most successful opera, though revivals have been rare in the past hundred years.

He is interrupted when Count Armand, a member of the French parliament, enters with his wife, Constance, begging Mikeli to save him from Cardinal Mazarin's soldiers.