The Three Musketeers: Milady (French: Les Trois Mousquetaires: Milady, titled The Three Musketeers – Part II: Milady in the United States) is a 2023 epic action-adventure film directed by Martin Bourboulon, based on Alexandre Dumas's 1844 novel The Three Musketeers. It is the second film of a two-part epic saga and was preceded by The Three Musketeers: D'Artagnan (2023). The film stars François Civil, Vincent Cassel, Pio Marmaï, Romain Duris, and Eva Green. The two films were co-produced by France, Germany, Spain and Belgium on a combined production budget of €72 million (US$78 million), with €36.1 million for Milady, and filmed back to back for 150 days from 16 August 2021 to 3 June 2022.

Milady made its world premiere at the Varilux French Cinema Festival in Rio de Janeiro on 18 November 2023. It was released theatrically in France by Pathé Distribution on 13 December 2023, in Belgium by Alternative Films on 13 December 2023 and in Spain by DeAPlaneta on 26 January 2024. It became available for digital purchase in Germany on 18 April 2024.

The film received generally positive reviews from critics and has sold over 2 million tickets in France. It received six nominations at the 2024 César Awards, winning one for Best Production Design.