"Variant of Alexei"
The name Alexy is commonly a unisex name from the "Russian" origin.
Alexy is an alternative English transliteration of the Russian name usually written Alexei or Aleksey, which continues Greek Alexios. English-language sources use the Alexy spelling for the Moscow patriarch Alexy II, and the same spelling appears in US birth records from 1976 for both boys and girls.
Alexei means "Defender of men, man-defending.".
The pronunciation of Alexy is uh-LEK-see.