Emily Katherine Correro known professionally as Gianna Dior is an American pornographic film actress and erotic model. She is the winner of multiple awards including the 2020 AVN Award for Best New Starlet and the 2022 AVN Award for Female Performer of the Year.

Dior is of Italian descent. She was born in California on May 12, 1997 and grew up in the state of Alabama. Both of her parents were in the military. Dior attended Auburn University, where she studied psychology. Before beginning her career in pornography, she worked as a waitress in a restaurant and as a receptionist.

After noticing Dior on Tinder, a porn agent in Miami approached her to shoot adult scenes. Following that, she made her debut at the age of 21 in May 2018. Her stage name Gianna Dior was chosen by her first agent who wanted to find something that recalled her Italian origins. In September 2018 she was named as the Penthouse Pet of the Month. In 2019, Dior became the Penthouse Pet of the Year.