thumb|right|125px|Coat of arms of the kingdom of Jerusalem.

There were six major officers of the Kingdom of Jerusalem: the constable, the marshal, the seneschal, the chamberlain (which were known as the "Grand Offices"), the butler and the chancellor. At certain times there were also bailiffs, viscounts and castellans.

Essentially these offices developed from the typical officials that existed in northern France in the 11th century, the homeland of the first kings of Jerusalem. The offices continued to develop in France and England, but in Jerusalem they tended to develop more slowly or not at all, taking on different roles than their European counterparts.

The lists given below are incomplete, as the specific names and dates of the officers are sometimes unknown. After the fall of the Kingdom of Jerusalem, the offices were sometimes awarded as honors by the kings of Cyprus and Jerusalem.

Constable

The constable commanded the army, paid mercenaries and judged legal cases pertaining to the military. He was the most important officer in the kingdom, due to the almost constant state of warfare that existed between the Christian and Muslim states. The constable was officially the second-in-command of the army, in which he exercised police authority and commanded a division twice as large as all others. In addition, constables also determined the boundaries and borders of the kingdom. During coronations the seneschal would hold the royal sceptre and oversee the coronation feast.

The office was similar to, but not as developed as, the English office of the exchequer.

  • Hugh of St. Omer (c. 1100–1104)
  • Gervase of Bazoches (c. 1104)
  • Hugo Chostard (c. 1112)
  • Anscherius (c. 1122?)
  • Isaac (c. 1149)
  • John (c. 1151)
  • (c. 1164)
  • Miles of Plancy (c. 1168–1174)
  • Ralph (c. 1176)
  • Joscelin III of Edessa (1176–1190)
  • Obertus Nepos (1187–1192?), possibly only personal under Conrad of Montferrat
  • Ralph of Tiberias (1194–1220)
  • Raymond of Gibelet (c. 1240)
  • Baldwin of Ibelin (c. 1256)
  • Geoffrey of Sergines (1254–1267?)
  • Robert of Cresque (c. 1269)
  • Olivier de Termes (1269)
  • Jean I de Grailly (1272–1276)
  • Odo Poilechien (1278–1286)
  • Philip of Ibelin (?–?)

Chamberlain

The chamberlain administered the royal household and its servants, and had other honorary duties such as administering oaths.

  • Winric (c. 1099)
  • Gervais (c. 1107)
  • Pagan (1120–1136)
  • Robert Crispin (1145–1146)
  • Odo of St Amand (1164–1167)
  • Miles (1185–1186)

Chancellor

The chancellor drew up deeds and charters and managed the kingdom's diplomatic service.