The Seven-Per-Cent Solution: Being a Reprint from the Reminiscences of John H. Watson, M.D. is a 1974 novel by American writer Nicholas Meyer. It is written as a pastiche of a Sherlock Holmes adventure, and was made into a film of the same name in 1976.

Nicholas Meyer is an American screenwriter, director and author known for his best-selling novel The Seven-Per-Cent Solution, and for directing the films Time After Time, two of the Star Trek feature films, the 1983 television film The Day After, and the 1999 HBO original film Vendetta.