Brittany Sellner

Brittany Sellner (Pettibone; born October 7, 1992) is an American political activist, author and influencer. She has been active as a YouTuber, and advocates anti-feminist views and the Great Replacement conspiracy theory.

Political activities
Sellner began her political work in 2016 to support Donald Trump's presidential campaign. She then actively promoted the Pizzagate conspiracy theory, and co-hosted the video podcast Virtue of the West with Tara McCarthy. The following year, she was one of the speakers at events that led to protests at Berkeley. She also traveled to France to support French presidential candidate Marine Le Pen, and to Sicily to join Generation Identity's efforts to stop NGO boats of African migrants. In 2018, she was refused entry to the United Kingdom and deported along with Martin Sellner. The same year, together with Lauren Southern she met with Russian ultranationalist Aleksandr Dugin.

Sellner describes herself as a "Catholic American nationalist", and advocates a "full stop on mass immigration". Critics have described her as an alt-right activist who traffics in white nationalist ideas, and she has been a major promoter of the Identitarian movement. The Anti-Defamation League describes her as alt-lite.

Personal life
Together with her identical twin, Nicole, Sellner authored the science-fiction and fantasy novel Hatred Day under the pseudonym T.S. Pettibone in 2016. The novel was selected as one of Kirkus Reviews' Best Books Of 2016.

Originally from California, Sellner married Austrian Identitarian activist Martin Sellner, and moved to Austria in 2019. The couple had a son in 2021.