Diadem (disambiguation)

A diadem is a type of crown.

Diadem may also refer to:

Maritime

 * HMS Diadem, several vessels of the Royal Navy
 * Diadem (ship), several merchant vessels

Arts and entertainment

 * Diadem (board game), a 1981 science fiction game
 * Diadem, a science fiction series by John Peel
 * The Diadem Saga, a science fiction series by Jo Clayton
 * "Diadems", a song by Megadeth on the soundtrack for the film Demon Knight
 * "Diadem", a tune used for the hymn "All Hail the Power of Jesus' Name"

Animals

 * Diademed monkey
 * Diadem roundleaf bat
 * Mograbin diadem snake
 * Diadem spider
 * Diadems, the butterfly genus Hypolimnas
 * Diadem (horse), a 20th-century Thoroughbred racehorse

Other uses

 * Diadem (star), a star in the constellation Coma Berenices
 * Operation Diadem, a military operation in World War II's Italian Campaign
 * Diadem Peak, a mountain in Alberta, Canada
 * DIAdem, a technical software for managing, analyzing, and reporting technical data from National Instruments