Grand Master (Latin: Magister generalis; German: Hochmeister) is a title of the supreme head of various orders, including chivalric orders such as military orders and dynastic orders of knighthood.
As most present-day orders are essentially honorary distinctions - as some always were, e.g. the Order of the Golden Fleece - so are its dignities, which may be held by right of birth or another rank. Thus, a sovereign monarch often holds the title of Grand Master of the highest honorary dynastic orders of knighthood, or by custom awards it to a prince of the royal family, regularly the heir to the throne, who in other orders may hold another high rank/title.
The term "Sovereign" is generally used in place of "Grand Master" for the supreme head of various orders in Britain and other Commonwealth nations. In the Sovereign Military Order of Malta, the Grand Master is styled "Sovereign", e.g. Sovereign Grand Master, due to its status as an internationally independent sovereign entity.
The title also occurs in modern civil fraternal orders such as the Freemasons, the Odd Fellows, and various other fraternities. Additionally, numerous modern self-styled orders attempt to imitate habits of the former bodies.