Namesakes
Olympic Medalists:
1 bronze
(bronze) Caren Kemner (a.k.a. Alexius) 1992 volleyball 
Roman and Byzantine Emperors:
5 emperors
Emperor Alexius Comnenus 1081-1118
Emperor Alexius Comnenus 1180-1183
Emperor Alexius Angelus 1195-1203
Emperor Alexius Angelus 1203-1204
Emperor Alexius Ducas Murtzuphius 1204
Saints:
2 blessed, 1 saint
Saint Alexius ?-417
Blessed Alexius Nakamura ?-1619
Blessed Alexius Sanbashi Saburo ?-1622