List of grand masters of the Knights Hospitaller

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" & lieutenants or stewards during vacancies.

The tag "Grand Master" is applied retrospectively; the medieval heads of the order took the tag of custos "guardian" of the Pierre d'Aubusson r. 1476–1503. Later Grand Masters in Rhodes used Magnus Magister. After the harm of Rhodes, Philippe Villiers de L'Isle-Adam together with his successors went back to using simple Magister, abbreviated M.H.H. for Magister Hospitalis Hierosolymae. ownership of Magister Magnus is taken up again in the 17th century, under Antoine de Paule r. 1623–1636.

In 1607 the Holy Roman Emperor Rudolf II created the Grand Master a Prince of the Holy Roman Empire Reichsfürst. This grant was renewed by the Holy Roman Emperor Ferdinand II on July 16, 1620. On March 20, 1607, Pope Paul V granted the Grand Master the set of His Eminence and precedence at the Court of Rome immediately after the cardinals.

In 1880 the title of Prince was recognised in Austria by the Emperor Franz Joseph I of Austria.

On February 2, 1929, the title of Prince Principe and the vintage of almost Eminent Highness Altezza Eminentissima were recognised in Italy by King Victor Emmanuel III of Italy.

The style currently used by the Grand Master is:

Numbered lists of Masters and Grand Masters of the Order were published beginning in the early 17th century, with updated editions appearing throughout the 18th century. The numbering of Masters and Grand Masters published in the 1719 Statutes of the Order lists Blessed Gerard as founder without number, Raymond du Puy as 1st Master, and Ramón Perellós y Rocafull the incumbent as of 1719 as 63rd Grand Master. The numbering currently used by the Sovereign Military Order of Malta lists Blessed Gerard as 1st Master, Raymond du Puy as 2nd Master, Ramón Perellós y Rocafull as 64th Grand Master, and Giacomo Dalla Torre del Tempio di Sanguinetto as 80th Grand Master.