The name Silvius is a boy's name of Latin origin meaning "wood, forest". Silvius and is often added to lists like Shakespeare Baby Names and discussed in our forums with posts like "Which would you choose?".
From the experts:
With the rise of ancient Roman names, the now-obscure Silvius may be rediscovered. Sleek and silvery, Silvius was the name of several legendary kings and an early saint. It survives in the contemporary world in its Spanish and Italian form Silvio, used for the character played by Steven Van Zandt on The Sopranos.