From the experts:
Viva la baby with this life-affirming name, one of the appealing group of girl names that mean life.! Singer Rufus Wainwright chose it for his baby daughter, perhaps in celebration of a new life entering the world the year after he lost his mother Kate McGarrigle. The baby's middle name is Katherine.
Viva (born Janet Susan) was one of Andy Warhol's single-named superstars.
Other related life-giving names on the rise: cousins Vida and Vita, and Vivian, Aviva, and even Zoe.