Emperor Alexius

Emperor Alexius or Alexis may refer to:


 * Alexios I Komnenos (1048–1118), Byzantine emperor
 * Alexios II Komnenos (1169–1183), Byzantine emperor
 * Alexios III Angelos (1153–1211), Byzantine emperor
 * Alexios IV Angelos (1182–1204), Byzantine emperor
 * Alexios V (died 1205), Alexios Doukas Mourtzouphlos, Byzantine emperor
 * Alexios I of Trebizond (1182–1222)
 * Alexios II of Trebizond (1282–1330)
 * Alexios III of Trebizond (1338–1390)
 * Alexios IV of Trebizond (1382–1429)
 * Alexis I of Russia (1629–1676), Alexei Mikhailovich Romanov