List of state leaders in 1121
1120 state leaders - Events of 1121 - 1122 state leaders - State leaders by year
Africa
- Cairo - Al-Amir Bi-Ahkamillah, Fatimid caliph of Cairo (1101-1130)
- Morocco - Ali III, Almoravid ruler (1106-1143)
- Ethiopia - Gebra Maskal Lalibela, Ruler of Ethiopia (1119-1159)
Americas
- Cuzco - Sinchi Roca, king of Cuzco (c. 1105-1140)
Asia
- Antioch -
- Bohemund II, Prince of Antioch (1111-1130)
- Baldwin II of Jerusalem (regent, 1119-1126)
- Aleppo -
- Suleyman I ibn-al-Ghazi, emir of Aleppo (1118-1121)
- Suleyman II, emir of Aleppo (1121-1123)
- Armenia Minor - Thoros I, King of Armenia (1102-1129)
- Baghdad - Al-Mustarshid, Abbasid caliph of Baghdad (1118-1135)
- Byzantine Empire - John II Comnenus, Byzantine emperor (1118-1143)
- China (Northern Song Dynasty) - Huizong, Emperor of Song China (1100-1125)
- Edessa - Joscelin I, Count of Edessa (1118-1131)
- Georgia - David IV, King of Georgia (1089-1125)
- Ghaznavid Empire - Bahram Shah, Ghaznavid emperor (1118-1152)
- Great Seljuk -
- Japan
- Monarch - Emperor Toba, emperor of Japan (1107-1123)
- Regent (Kampaku) -
- Fujiwara no Tadazane, Sessho or Kampaku (1106-1121)
- Fujiwara no Tadamichi, Sessho or Kampaku (1121-1158)
- Cloistered ruler - Emperor Shirakawa, Jōkō of Japan (1087-1129)
- Jerusalem - Baldwin II, King of Jerusalem (1118-1131)
- Jin (Jurchen Empire) - Taizu, Emperor of Jin (1115-1123)
- Kerman - Arslan Shah I, Sultan of Kerman (1101-1142)
- Khmer Empire - Suryavarman II, Khmer emperor (1113-1150)
- Korea (Goryeo Dynasty) - Hyejong, King of Goryeo (1105-1122)
- Liao (Khitan Empire) - Tianzuodi, Emperor of Liao (1101-1125)
- Rüm - Mas'ud, Sultan of Rüm (1116-1156)
- Tripoli - Pons, Count of Tripoli (1112-1137)
- Vietnam - Ly Nhon Ton, King of Vietnam (1072-1127)
- Western Xia - Chongzong, Emperor of Western Xia (1086-1139)
Europe
- Albret - Amanieu III, Lord of Albret (1100-1130)
- Angouleme - Wulgrin II, Count of Angouleme (1118-1140)
- Anjou - Fulk V, Count of Anjou (1106-1129)
- Apulia - William II, Duke of Apulia (1111-1127)
- Aquitaine - William IX, Duke of Aquitaine (1086-1127)
- Aragon - Alfonso II, King of Aragon (1104-1134)
- Austria - Leopold III Margrave of Austria (1095-1136)
- Auvergne - William VI, Count of Auvergne (1096-1136)
- Baden - Herman II, Margrave of Baden (1073-1130)
- Barcelona - Ramon Berenguer III, Count of Barcelona (1082-1131)
- Barrois - Renaut I the One-eyed, Count of Bar (1105-1150)
- Bavaria - Henry IX, Duke of Bavaria (1120-1126)
- Blois - Theobald IV, Count of Blois (1102-1152)
- Bohemia - Vladislav I, Duke of Bohemia (1120-1125)
- Boulogne - Eustace III, Count of Boulogne (1093-1125)
- Brabant - Godfrey I, Duke of Brabant (1095-1139)
- Brittany - Conan III, Duke of Brittany (1112-1148)
- Burgundy (county)
- Renaud III, count of Burgundy (de jure, 1102-1127)
- William II the German (de facto, 1097-1125)
- Burgundy (duchy) - Hugh II, Duke of Burgundy (1103-1143)
- Carinthia - Henry II, Duke of Carinthia (1090-1122)
- Castile - Urraca, King of Castile (1109-1126)
- Champagne - Hugues, Count of Champagne (1093-1125)
- Denmark - Niels, King of Denmark (1104-1134)
- Deheubarth - Gruffydd ap Rhys, prince of Deheubarth (with Norman permission, 1116-1137)
- Empúries - Ponç II, Count of Empúries (1116-1154)
- England - Henry I, King of England (1100-1135)
- Flanders - Charles the Good, Count of Flanders (1119-1127)
- France - Louis IV, King of France (1108-1137)
- Guelders - Gerard I, Count of Guelders (c. 1096-c. 1129)
- Gwynedd - Gruffydd ap Cynan, King of Gwynedd (1081-1137)
- Hainaut - Baldwin IV, Count of Hainaut (1120-1171)
- Holland -
- Holy Roman Empire - Henry V, Holy Roman Emperor (1111-1125)
- Hungary - Stephen II, King of Hungary (1114-1131)
- Ireland - Toirdhealbhach Ua Conchobhair, High King of Ireland (1106-1156)
- Isle of Man - Sigurd, King of the Isle of Man and the Isles (1104-1130)
- Kyivan Rus' - Vladimir Monomakh, ruler of Kyivan Rus' (1113–1125)
- León - Urraca, King of León (1109-1126)
- Lorraine - Simon I, Duke of Lorraine (1115-1138)
- Lower Lorraine - Godfrey of Louvain, Duke of Lower Lorraine (1106-1140)
- Maine -
- Fulk V of Anjou, Count of Maine (1110-1126)
- Hugh V (titular count, 1093-1131)
- Montferrat - Rainier of Montferrat, marquis of Montferrat (1084-c. 1136)
- Namur - Godfrey I, Marquis of Namur (1102–1139)
- Navarre - Alfonso II, King of Navarre (1104-1134)
- Normandy - Henry Beauclerc, Duke of Normandy (1106-1135)
- Norway - Øystein Magnusson, King of Norway (1103-1123)
- Poitiers - William IX, Count of Poitiers (1086-1127)
- Poland - Boleslaus III, Duke of Poland (1107-1138)
- Pomerania - Swantipolk, Duke of Pomerania (1109-1155)
- Portugal - Afonso I, Count of Portugal (1112-1139)
- Powys - Maredudd ap Bleddyn, prince of Powys (1116-1132)
- Provence - Adelaide, Countess of Provence (1118-1163)
- Savoy - Amadeus III, Count of Savoy (1103-1148)
- Saxony - Lothar, Duke of Saxony (1106-1137)
- Scotland - Alexander I, King of Scotland (1107-1124)
- Sicily - Roger II, Count of Sicily (1105-1130)
- Styria - Ottokar VI, Duke of Styria (1084-1122)
- Swabia - Frederick II, Duke of Swabia (1105-1147)
- Sweden - Ingold II, King of Sweden (1105-1125)
- Taranto - Bohemund II, prince of Taranto (1111-1128)
- Toulouse - Alphonse I, Count of Toulouse (1112-1148)
- Utrecht - Godebold, Prince-Bishop of Utrecht (1112-1127)
- Venice - Domenico Michele, Doge of Venice (1117-1130)
- Württemberg - Conrad I, Count of Württemberg (1089-1122)