"Vicki" is a 1953 American film noir starring Jean Peters as the titular Vicki, a waitress-turned-model who is murdered, and Jeanne Crain as her sister looking for justice. It's also notable as the acting debut of Aaron Spelling, who would later go on to earn fame as a tv producer.
Vicki Lawrence (born Vicki Ann Axelrad in 1949) is an American comedian and actress, probably best known for her roles on the TV shows "The Carol Burnett Show" (1967–1978) and "Mama's Family" (1983–1990).
Vicki Byrne is one of the four main characters in the series Left Behind: The Kids by Jerry B. Jenkins. I think that in book three they mention that her name is actually Victoria, but she goes by the name Vicki.