Victoria Amelia Vega Polanco (born November 7, 1984), better known simply as Amelia Vega, is a Dominican Republic woman who won the Miss Universe contest on June 3, 2003.

Vega made history, as she became the first Dominican woman ever to win the Miss Universe title.

She had been mentioned by various media outlets as one of the favorite candidates to win the crown before the contest took place. Vega demonstrated to be one of the contest's loudest candidates, when she went and screamed in front of a camera during a filming of a contest practice. Despite backstage controversy, her victory was a clear-cut one and she has become one of the most marketed faces to come out of the Miss Universe pageant. At over 6 feet tall she is one of the pageant's tallest winners in history.

Famous singer Juan Luis Guerra is Vega's uncle-in-law. Her mother Patricia Polanco is a former Miss Dominican Republic to Miss World.

On July 24 of 2004, she and Shalim Ortiz announced that they are dating.