Meaning A boy's name of Russian origin, it means "defender of mankind." Origin of Oleksiy Russian , Slavic +-100%Zoom level changed to 1 Popular Middle Names Pronunciation 🔊 Listen Oleksiy Similar Names Oleksander Olek Oleksandr Aleksei Aleksey Alecksander Lyaksandro Alexei Oleés Oles Year by Year Popularity of Oleksiy