The Key of Solomon is a 14th or 15th century pseudoepigraphical grimoire attributed to King Solomon.
Key of Solomon may also refer to:
- The Lesser Key of Solomon, an anonymously authored 17th century grimoire on goetia
- Solomon's Key, a 1986 video game by Tecmo
- Solomon's Key 2, a 1992 video game by Tecmo
- The Solomon Key, the working title of the 2009 novel The Lost Symbol by Dan Brown