This is a list of grand masters of the Knights Hospitaller, including its continuation as the Sovereign Military Order of Malta after 1798. It also includes unrecognized "anti-grand masters" and lieutenants or stewards during vacancies.
In lists of the heads of the Order, the title "grand master" is often applied retrospectively to the early heads of the Order. The medieval heads of the Order used the title of custos (guardian) of the hospital. The title magister (master) is used on coins minted in Rhodes, beginning with Foulques de Villaret. The first to use the title grandis magister (grand master) was Jean de Lastic (reigned 1437–1454). Later grand masters in Rhodes used magnus magister (grand master).
