Nick Grundy is a British far-right activist associated with the British National Party (BNP) and an anti-Islam campaigner who co-founded the United Kingdom branch of Stop Islamisation of Europe (SIOE), an organization that campaigns against what it describes as the Islamization of European societies. He has been involved in organizing and participating in far-right demonstrations, including anti-Islam protests, protests against mosque construction, and large-scale anti-immigration rallies in cities like London. Grundy frequently appears in media outlets to promote anti-immigration views, particularly targeting immigration from Muslim-majority countries, and is a vocal critic of multiculturalism. His activism includes international connections within the counter-jihad movement, notably through meetings with Anders Gravers, founder of the original Danish SIOE, highlighting efforts to coordinate anti-Islam efforts across Europe. Grundy's public statements and activities have drawn significant criticism from anti-racism groups for promoting Islamophobia and hate speech, with accusations that his rhetoric contributes to far-right extremism. Despite controversies, he remains an active figure in UK-based anti-immigration circles.