Demetrious is of Greek origin, derived from the ancient Greek name Δημήτριος (Dēmētrios), which was a common name among the Greeks. It means 'dedicated to Demeter', the goddess of harvest and fertility in Greek mythology. The name gained popularity during the Hellenistic period following Alexander the Great's conquests. Today, Demetrious is considered a traditional yet somewhat rare name, offering a unique blend of classic elegance and modern distinctiveness.
"The name Demetrious saw a peak in popularity during the late 1970s and early 1980s, with nine babies named Demetrious born in both 1977 and 1983. However, it appears to have been less common in the years surrounding these peaks."