Gregorio is of Latin origin, meaning 'vigilant' or 'alert'. It was popularized by Pope Gregory I, also known as St. Gregory the Great, who served in the 6th century AD. This name has been widely used throughout history and can be found in various forms across different cultures.
"Gregorio saw its peak popularity with 5 births each in both 1920 and 1925, totaling to 10 newborns over these years."