The names of Alexis I, Russian Orthodox patriarch from 1945 to 1970, and Alexis II, patriarch from 1990 to the present, are also at times spelled Alexy, Aleksi, Aleksei, and Alexei.
Aleksius I oli Vene Õigeusu Kiriku patriarh aastatel 1945 kuni 1970 ja Aleksius II alates aastast 1990 kuni praeguseni.