- the head of a military order of knighthood, a lodge, fraternal order, or the like.
- International Grand Master.
- a person at the highest level of ability or achievement in any field.
- chess
- one of the top chess players of a particular country
- (capital as part of title)
- a player who has been awarded the highest title by the Fédération Internationale des Échecs
- a leading exponent of any of various arts
- the title borne by the head of any of various societies, orders, and other organizations, such as the Templars or Freemasons, or the various martial arts
