Part VI in our series on the Electoral College: Did You Know? “A similar electoral college was previously used by the Holy Roman Empire. From the Middle Ages until 1792, leaders of the Holy Roman Empire were elected by a college of prince-electors from various German states.” (History.com).
But, with very few exceptions, the system has not been emulated by other countries. It is, in other words, pretty unique to the American republic.
See: https://www.history.com/news/8-things-you-may-not-know-about-the-electoral-college.