Julia Scarlett Elizabeth Louis-Dreyfus (/ˌluːiˈdraɪfəs/ LOO-ee DRY-fəs; born January 13, 1961) is an American actress, comedian, and producer. She is known for her roles in a string of successful comedy series and several comedy films. She has received numerous accolades, including 11 Primetime Emmy Awards, a Golden Globe Award, and nine Screen Actors Guild Awards.

The daughter of French billionaire Gérard Louis-Dreyfus, she entered comedy as a performer with the Practical Theatre Company. She was a cast member on the sketch comedy series Saturday Night Live from 1982 to 1985. Her breakthrough came playing Elaine Benes on the NBC sitcomSeinfeld (1990–1998), one of the most successful sitcoms in television history. She earned further acclaim for her roles as Christine Campbell on The New Adventures of Old Christine (2006–2010) and Selina Meyer on Veep (2012–2019), and has guest-starred on shows such as Arrested Development, Curb Your Enthusiasm, and 30 Rock.