The Four Musketeers (also known as The Four Musketeers (The Revenge of Milady)) is a 1974 British swashbuckler film and sequel to the 1973 film The Three Musketeers, covering the second half of Dumas' 1844 novel The Three Musketeers.

Fifteen years after completion of The Four Musketeers, much of the cast and crew reassembled to film The Return of the Musketeers (1989), loosely based on Dumas' Twenty Years After (1845).