The name Flavius is a boy's name meaning "yellow, blond". Flavius and is often added to lists like Cool Boy Names From Ancient Cultures and discussed in our forums with posts like "Picky Parents - Sibsets Version".
From the experts:
Flavius is an ancient Roman family name associated with a dynasty of emperors. It has an appealingly flavorful first syllable, and is the name of a stylist in the Hunger Games series.
Earlier fictional characters include the Flavius in Shakespeare's Julius Caesar, Flavius Maximus in a "Star Trek" episode, and a Flavius in the Pandora novel in Anne Rice's The Vampire Chronicles.
With the renewed interest in ancient Roman names, Flavius might find some fans.