The Sovereign Military Order of Malta (SMOM), officially the Sovereign Military Hospitaller Order of Saint John of Jerusalem, of Rhodes and of Malta (; ), commonly known as the Order of Malta or Knights of Malta, is a Catholic lay religious order, traditionally of a military, chivalric, and noble nature. Though it possesses no territory, the order is often considered a sovereign entity under international law.

The order claims continuity with the Knights Hospitaller, a chivalric order that was founded about 1099 by the Blessed Gerard in the Kingdom of Jerusalem. The order is led by an elected prince and grand master. Its motto is ('Defence of the faith and assistance to the poor'). The order venerates the Virgin Mary as its patroness, under the title of Our Lady of Philermos.

Sovereign Military Order of Malta

The Order's membership includes about 13,500 Knights, Dames and Chaplains. Thirty-three of these are professed religious Knights of Justice. Until the 1990s, the highest classes of membership, including officers, required proof of noble lineage. More recently, a path was created for Knights and Dames of the lowest class (of whom proof of aristocratic lineage is not required) to be specially elevated to the highest class, making them eligible for office in the order.

Sovereign Military Order of Malta

The Order's modern-day role is largely focused on providing humanitarian assistance and assisting with international humanitarian relations, for which purpose it has had permanent observer status at the United Nations General Assembly since 1994. The Order employs about 52,000 doctors, nurses, auxiliaries and paramedics assisted by 95,000 volunteers in more than 120 countries, assisting children, homeless, disabled, elderly, and terminally ill people, refugees, and lepers around the world without distinction of ethnicity or religion. Through its worldwide relief corps, Malteser International, the order aids victims of natural disasters, epidemics and war.

Sovereign Military Order of Malta

The Order maintains diplomatic relations with 112 states, enters into treaties, and issues its own passports, coins and postage stamps. Its two headquarters buildings in Rome enjoy extraterritoriality, similar to embassies, and it maintains embassies in other countries. The news agency has called it "the smallest sovereign state in the world". The three principal officers are counted as citizens. Although the Order has been a United Nations General Assembly observer since 1994, this was granted in view of its "long-standing dedication [...] in providing humanitarian assistance and its special role in international humanitarian relations"; the same category is held by other non-state entities such as the International Olympic Committee and International Committee of the Red Cross.

Name and insignia

The Order has a large number of Priories, Sub-Priories, and National Associations around the world, but there also exist a number of organizations with similar-sounding names that are unrelated to the Order. These include a number of mimic orders, including Masonic and non-Catholic organizations.

The Order has two flags. The state flag is a rectangular flag with a red ground upon which there is a white Latin cross. The flag of the Order's works is a rectangular flag with a red ground upon which there is a white eight-pointed Maltese cross.

The Grand Master uses a rectangular flag with a red ground upon which there is a white eight-pointed Maltese cross, encircled by the Collar of the Order and surmounted by a crown.

The coat-of-arms of the Order, gules a cross argent (a white/silver cross on a red field), are displayed in an oval shield surrounded by a rosary, all superimposed on a white eight-pointed cross and displayed under a princely mantle surmounted by a crown.

In the ecclesiastical heraldry of the Catholic Church, the Order of Malta is one of only two orders (along with the Order of the Holy Sepulchre) whose insignia may be displayed in a clerical coat of arms. (Laypersons have no such restriction.) The shield is surrounded with a silver rosary for professed knights, or for others the ribbon of their rank. Some members may also display the Maltese cross behind their shield instead of the ribbon.

To protect its heritage against fraud, the Order has legally registered sixteen versions of its names and emblems in some one hundred countries.