Demetrius is of Greek origin, derived from the word 'dēmētēr', meaning 'follower of Demeter'. This name was popular among ancient Greeks and Romans, often given to children in honor of their deities. In mythology, Demeter is the goddess of harvest and agriculture, known for her daughter Persephone. The name Demetrius has been used throughout history, with notable figures including Demetrius Poliorcetes, a king of Macedon, and Saint Demetrius, an early Christian martyr.
"The name Demetrius experienced significant popularity from the mid-50s to the early 80s, peaking at 82 births in 1975. However, it has steadily declined since, with only 6 births recorded in 2004."