Sienna Miller Wears Backless Dress to Vanity Fair Oscar Party 2023

Sienna Miller is showing off some skin on the red carpet.

The 41-year-old Anatomy of a Scandal actress posed for photos while arriving at the 2023 Vanity Fair Oscar Party on Sunday night (March 12) at the Wallis Annenberg Center for the Performing Arts in Beverly Hills, Calif.

PHOTOS: Check out the latest pics of Sienna Miller

For the party, Sienna wore a backless gray and yellow dress while carrying a sparkling silver bag.

Last month, Sienna made a rare appearance with 10-year-old daughter Marlowe at New York Fashion Week!

See all of the other stars that are stepping out for Oscars parties.

FYI: Sienna is wearing a Fendi dress.

Click through the gallery inside for 10+ pictures of Sienna Miller arriving at the awards show after party…