Margot Robbie - 5 Halloween Costume Ideas

Margot Robbie Costume Ideas in 2026

Harley or Barbie, both are guaranteed party hits.
blonde women Pink vintage Fedora pink hair Warner Bros
Barbenheimer Halloween Costume
Margot Robbie

Barbenheimer Halloween Costume

Barbie Costume from the 2023 Movie – Halloween 2026 Guide
Margot Robbie

Barbie Costume from the 2023 Movie – Halloween 2026 Guide

Nellie LaRoy Costume Guide
Margot Robbie

Nellie LaRoy Costume Guide

Sharon Tate From Once Upon A Time In Hollywood
Margot Robbie

Sharon Tate From Once Upon A Time In Hollywood

Harley Quinn From Birds of Prey
Margot Robbie

Harley Quinn From Birds of Prey

About Margot Robbie Costumes

This category rounds up costumes from across Margot Robbie's biggest roles, since she's played wildly different characters: Harley Quinn, Barbie, Tonya Harding. Pick the role that fits your crowd, since the actress herself carries no single costume identity.

Harley Quinn and Barbie are by far the most recognized picks here, both guaranteed hits. The rest are great choices if your group knows that specific film.

Harley Quinn's look varies a lot by film, pick one specific version, Suicide Squad or Birds of Prey, and stick with it rather than mixing eras.

Harley Quinn and the Joker make an iconic, if complicated, duo. For a lighter pairing, Barbie and Ken is the easy, guaranteed crowd-pleaser, matching pink outfits and confident smiles do all the work.

Margot Robbie Costumes: FAQ

Harley Quinn or Barbie. Both have extremely specific, well-known visual identities that read instantly, whether or not people know Robbie played them.

The Suicide Squad look with the red and blue color-blocked hair is the most widely recognized version she played, though earlier comic-accurate looks also work.

For Harley Quinn and Barbie, yes, both remain hugely recognized. Her other roles depend more on how well remembered that specific film is.

Picking one specific, well-defined role and building around its details, rather than trying to reference the actress generally.