Rosalie Lillian Hale (born 1915 in Rochester, New York) is a member of the Olympic coven. She is the wife of Emmett Cullen and the adoptive daughter of Carlisle and Esme Cullen, as well as the adoptive sister of Jasper Hale (in Forks, she and Jasper pretend to be twins), Alice, and Edward Cullen. Rosalie is the adoptive sister-in-law of Bella Swan and adoptive aunt of Renesmee Cullen, as well as the ex-fiancée of Royce King II.

In 1933, Rosalie was turned into a vampire by Carlisle Cullen after being raped and beaten to the brink of death by a group of drunken men, including her fiancé. Two years later, Rosalie rescued a young man named Emmett from being mauled by a bear, and after his transformation into a vampire, the two fell very deeply in love. Along with Emmett, Rosalie is an integral member of the Cullen family and fights eagerly against those who threaten their coven.