Kellie-Jay Keen-Minshull (AKA Posie Parker) is a British anti-trans activist best known for her t-shirts and stickers bearing the words “woman: adult human female”. Keen-Minshull is a leading voice in the anti-trans movement in the UK and overseas.

She has found support from the far right, which also targets trans people. Keen-Minshull has posted anti-Muslim tweets and expressed support for Tommy Robinson. She has appeared on the livestreams of conspiracy theorist Richie Allen’s channel twice and been interviewed by Laurence Fox, and also frequently appears on GB News and TalkTV.

Far-right activists have also supported her at her rallies. In 2022, an event hosted by Keen-Minshull in Brighton was streamed by Hearts of Oak. Members of the Independent Nationalist Network and Alpha Team Assemble also attended.

Keen-Minshull registered the Party of Women as a gender-critical political party in February 2024. The party stood 16 candidates in the general election, including Keen-Minshull in Bristol Central. She lost her deposit with 0.5% (196 votes). The Party of Women has two local councillors, one in Maldon, Essex and another in Cheshire West.

In August, Keen-Minshull appeared to express support for the National Front because it historically campaigned against a paedophile group. Several months later, she reposted – and then deleted – an altered version of the Fourteen Words white supremacist slogan.