If you're asking about after Bella becomes a vampire, the it's Carlisle, Esme, Emmett, Rosalie, Jasper, Alice, Edward, Bella, and Renesmee (Nessie)
it really depends. some vampires (Twilight, Darren Shan, and Moonlight vampires) keep their human name.
edward
the volturi
the volturi
Victoria
I think it's Vampires Suck, a parody movie of Twilight.
Trenton Taylor
Volturi
Twighlight is called that because its about vampires in the twighlight and about darkness.
The vampire parliament in the Twilight series is called the "Volturi." They are a powerful coven of vampires based in Volterra, Italy, who enforce the laws and rules governing the vampire world.
Twilight
The vampires in Rome in the "Twilight" series are called the Volturi. They are an ancient and powerful coven who act as the governing body of the vampire world, enforcing the laws and traditions among vampires.