Aleksy is a name of Polish origin derived from the Greek "Alexios," meaning "to defend" or "to protect." It has been popular among royalty throughout history, including Alexius I Comnenus, a Byzantine emperor during the 12th century. In Poland, Aleksy is considered one of the most traditional male names and has been used for centuries. Despite its popularity in Poland, it remains relatively rare outside of Eastern Europe. Notable figures named Aleksy include Aleksy II, who served as the Patriarch of Moscow and All Russia from 1990 to 2008.