Vivian (and variants such as Vivien and Vivienne) is a given name, and less often a surname, derived from a Latin name of the Roman Empire period, masculine Vivianus and feminine Viviana, which survived into modern use because it is the name of two early Christian female martyrs as well as of a male saint and bishop. History and variants. The Latin name Vivianus is recorded from the 1st century. It is ultimately related to the adjective vivus "alive", but it is formed from the compound form vivi- and the adjectival -ānus suffix used to form cognomina.
https://en.wikipedia.org/wiki/Vivian_(personal_name)