Conrad IV of Germany (1228–1254) was King of Germany (King of the Romans) from 1237 to 1254.
Conrad IV or Konrad IV may also refer to:
- Conrad IV of Frontenhausen , bishop of Regensburg (1204–1226)
- Conrad IV of Tann (died 1236), German Roman Catholic bishop
- Conrad IV of Swabia or Conradin (1252–1268)
- Conrad IV of Fohnsdorf , archbishop of Salzburg (1291–1312)
- Conrad IV (died 1324), bishop of Cammin
- Conrad IV of Schöneck , bishop of Worms (1319–1329)
- Conrad IV of Weinsberg , fought in the Reichskrieg (1311–1312)
- Conrad IV of Hanau (died 1383), abbot of Fulda
- Conrad IV, Count of Rietberg (c. 1371–1428)
- Konrad IV the Elder (c. 1384–1447), Duke of Silesia
- Conrad IV (1408–1419), Count of Fürstenberg-Wolfach
- Conrad IV of Bussnang (died 1471), French Roman Catholic bishop