List of state leaders in 1121

This is a list of heads of state, heads of governments, and other rulers in the year 1121.

Africa

• Fatimid Caliphate – Al-Amir bi-Ahkami'l-Lah (1101–1130)
• Morocco (Almoravid dynasty) – Ali III (1106–1143)

Asia

• Principality of Antioch –
  • Bohemond II (1111–1130)
  • Baldwin II of Jerusalem (regent, 1119–1126)
• Emirate of Aleppo –
  • Suleyman I ibn-al-Ghazi (1118–1121)
  • Suleyman II (1121–1123)
• Armenian Kingdom of Cilicia – Thoros I (1102–1129)
• Abbasid Caliphate (Baghdad) – Al-Mustarshid (1118–1135)
• Byzantine Empire – John II Comnenus (1118–1143)
• China (Northern Song dynasty) – Emperor Huizong (1100–1125)
• County of Edessa – Joscelin I (1118–1131)
• Kingdom of Georgia – David IV (1089–1125)
• Ghaznavid Empire – Bahram Shah (1118–1152)
• Great Seljuq Empire –
  • Ahmad Sanjar (1097–1157)
  • Mahmud II (rival, 1118–1131)
• Japan (Heian period)
  • Monarch – Emperor Toba (1107–1123)
  • Regent (Sesshō/Kampaku) -
    1. Fujiwara no Tadazane (1106–1121)
    2. Fujiwara no Tadamichi (1121–1158)
  • Cloistered ruler – Emperor Shirakawa, Jōkō of Japan (1087–1129)
• Kingdom of Jerusalem – Baldwin II (1118–1131)
• Jin dynasty/Jurchen Empire – Emperor Taizu (1115–1123)
• Sultanate of Kerman – Arslan Shah I (1101–1142)
• Khmer Empire – Suryavarman II (1113–1150)
• Korea (Goryeo Kingdom) – Yejong (1105–1122)
• Liao dynasty (Khitan Empire) – Emperor Tianzuodi (1101–1125)
• Sultanate of Rûm – Mesud I (1116–1156)
• County of Tripoli – Pons (1112–1137)
• Vietnam – Lý Nhân Tông, King of Vietnam (1072–1127)
• Western Xia – Emperor Chongzong (1086–1139)

Europe

• Lordship (seigneurie) of Albret – Amanieu III (1100–1130)
• County of Angoulême – Wulgrin II (1118–1140)
• County of Anjou – Fulk V (1106–1129)
• Duchy of Apulia – William II (1111–1127)
• Duchy of Aquitaine – William IX (1086–1127)
• Kingdom of Aragon – Alfonso II (1104–1134)
• Margraviate of Austria – Leopold III (1095–1136)
• County of Auvergne – William VI (1096–1136)
• Margraviate of Baden – Herman II (1073–1130)
• County of Barcelona, Ramon Berenguer III (1082–1131)
• Barrois – Renaut I the One-eyed, Count of Bar (1105–1150)
• Duchy of Bavaria – Henry IX (1120–1126)
• County of Blois – Theobald IV (1102–1152)
• Duchy of Bohemia – Vladislav I (1120–1125)
• County of Boulogne – Eustace III (1093–1125)
• Landgraviate of Brabant – Godfrey I (1095–1139)
• Duchy of Brittany – Conan III (1112–1148)
• County of Burgundy
  • Renaud III (de jure, 1102–1127)
  • William II the German (de facto, 1097–1125)
• Duchy of Burgundy – Hugh II (1103–1143)
• Duchy of Carinthia – Henry II (1090–1122)
• Kingdom of Castile – Urraca (1109–1126)
• County of Champagne – Hugh (1093–1125)
• Kingdom of Denmark – Niels (1104–1134)
• Deheubarth – Gruffydd ap Rhys, prince of Deheubarth (with Norman permission, 1116–1137)
• County of Empúries – Ponç II (1116–1154)
• Kingdom of England – Henry I (1100–1135)
• County of Flanders – Charles the Good (1119–1127)
• County of Forcalquier – Adelaide (1067?–1129)
• Kingdom of France – Louis VI (1108–1137)
• County of Guelders – Gerard I (c. 1096-c. 1129)
• Kingdom of Gwynedd – Gruffudd ap Cynan (1081–1137)
• County of Hainaut – Baldwin IV (1120–1171)
• County of Holland –
  • Floris II (1091–1121)
  • Dirk VI (1121–1157)
• Holy Roman Empire – Henry V (1111–1125)
• Kingdom of Hungary – Stephen II (1114–1131)
• Ireland – Toirdhealbhach Ua Conchobhair, High King of Ireland (1106–1156)
• Kingdom of the Isles – Sigurd (1104–1130)
• Kievan Rus' – Vladimir Monomakh (1113–1125)
• Kingdom of León – Urraca (1109–1126)
• Duchy of Lorraine – Simon I (1115–1138)
• Duchy of Lower Lorraine – Godfrey V (1106–1140)
• County of Maine –
  • Fulk V of Anjou (1110–1126)
  • Hugh V (titular count, 1093–1131)
• March of Montferrat – Rainier (1084-c. 1136)
• County of Namur – Godfrey I (1102–1139)
• Kingdom of Navarre – Alfonso II (1104–1134)
• Duchy of Normandy – Henry Beauclerc (1106–1135)
• Kingdom of Norway – Øystein Magnusson (1103–1123)
• County of Poitiers – William IX (1086–1127)
• Duchy of Poland – Boleslaus III (1107–1138)
• Duchy of Pomerania – Swantopolk I, Duke of Pomerelia (1109–1121)
• County of Portugal – Afonso I (1112–1139)
• Kingdom of Powys – Maredudd ap Bleddyn, prince of Powys (1116–1132)
• County of Provence – Douce I (1112–1127)
• County of Savoy – Amadeus III (1103–1148)
• Duchy of Saxony – Lothar (1106–1137)
• Kingdom of Scotland – Alexander I (1107–1124)
• County of Sicily – Roger II (1105–1130)
• Duchy of Styria – Ottokar VI (1084–1122)
• Duchy of Swabia – Frederick II (1105–1147)
• Kingdom of Sweden – Inge the Younger (1105–1125)
• Principality of Taranto – Bohemond II (1111–1128)
• County of Toulouse – Alphonse I (1112–1148)
• Bishopric of Utrecht – Godbald (1112–1127)
• Republic of Venice – Domenico Michele, Doge of Venice (1117–1130)
• County of Württemberg – Konrad I (1089–1122)