Brittany Sellner (née Pettibone; born October 7, 1992) is an American political activist, author and influencer.

[3] She then actively promoted the Pizzagate conspiracy theory,[3][5][6] and co-hosted the video podcast Virtue of the West with Tara McCarthy.

[8][9] She also traveled to France to support French presidential candidate Marine Le Pen,[3] and to Sicily to join Generation Identity's efforts to stop NGO boats of African migrants.

[12] Sellner describes herself as a "Catholic American nationalist", and advocates a "full stop on mass immigration".

[6] Critics such as the Anti-Defamation League have described her as an alt-right or alt-lite activist[7] who traffics in white nationalist ideas,[6] and she has been a major promoter of the Identitarian movement.