Peder Are Nøstvold Jensen, better known by his pseudonym Fjordman, is a Norwegian far-right blogger, writer, and anti-vaccine activist born on June 11, 1975, in Tokke, Norway. He began writing anonymously under the Fjordman moniker in 2005, contributing essays to counter-jihad websites such as Gates of Vienna and Jihad Watch. His writings argue that multiculturalism, particularly Muslim mass immigration, represents an existential threat to Western civilization, a concept he popularized through the term 'Eurabia,' suggesting a conspiracy of Islamization in Europe. Jensen self-published the book 'Defeating Eurabia' in 2008, in which he advocated extreme measures, stating that 'Islam, and all those who practice it, must be totally and physically removed from the entire Western world.' His work has significantly influenced far-right ideologies and the global counter-jihad movement.

Jensen disclosed his real identity in 2011 amid growing attention, particularly after his essays were cited over 100 times in the manifesto of Anders Behring Breivik, the perpetrator of the 2011 Norway attacks that killed 77 people. Although Jensen was questioned by police and condemned the violence, the association brought intense scrutiny and criticism for promoting inflammatory rhetoric that some argue contributed to radicalization. He has faced accusations of Islamophobia and hate speech, with his views condemned by Norwegian authorities and anti-extremism groups. Continuing his activism, Jensen has written for outlets like Human Events and engaged in anti-vaccine advocacy, particularly during the COVID-19 pandemic, aligning with conspiracy-oriented networks.

Throughout his career, Jensen has maintained a low public profile, residing primarily in Norway. His influence extends through online networks, shaping discourse in far-right circles across Europe and the United States. Critics, including the Norwegian Institute for Social Research, have highlighted his role in amplifying anti-immigrant sentiments, while supporters view him as a defender of cultural preservation. No criminal convictions are recorded, but his writings remain controversial and under ongoing academic and media analysis for their impact on influence networks.