Alexius
Alexius est praenomen masculinum, e lingua Graeca ortum.

Homines 
 Alexius (tzar Russiae) (1629–1676), tzar Russicus
 Alexius I Comnenus (1048–1118), imperator Romanorum orientalium
 Alexius II Comnenus (1169–1183), imperator Constantinopolitanus
 Alexius III Angelus (1153–1211), imperator Constantinopolitanus
 Alexius IV Angelus (1182–1204), imperator Constantinopolitanus
 Alexius V Ducas (1160–1204), imperator Constantinopolitanus
Alexius Axuches
Alexius Carpentier
Alexius Favorski
 Alexius Kivi (1834–1872), scriptor Finnicus
Alexius Navalnyj
 Alexius Orlov (1737–1808), militarium et politicarum peritus Russicus
Alexius Romanus
Alexius Rykov
 Alexius Savrasov (1830–1897), pictor topiarum Russicus
Alexius Stachanov
 Alexius Tolstoj (1817–1875), poëta, mythistoricus et dramatum scriptor Russicus
 Alexius Tolstoj (1883–1945), scriptor Russicus et Sovieticus
 Alexius Tsipras (1974), politicus et socialista
 Alexius Vastine (1986–2015), clarus athleta id est pugil Francicus
Alexius Venecianov

Personae fictae
 Alexius Papae filius

Praenomina
Praenomina masculina