Nathan Cofnas

Nathan Cofnas (born 1987) is an American postdoctoral researcher at Ghent University in Belgium. He is known for controversies surrounding his advocacy of scientific racism.

Cofnas earned a doctorate from Oxford University in 2020 and, thereafter, a Leverhulme Trust research grant. He became an early-career research fellow at the University of Cambridge and research associate at Emmanuel College, Cambridge in 2022. After it was publicised that Cofnas had written in a 2014 blog post that black people are, on average, less intelligent than other groups, and that they "would disappear from almost all high-profile positions outside of sports and entertainment" under a meritocratic system, he was dismissed from his position at Emmanuel College.

In 2026, Cofnas secured a position at Ghent University. In response to student protest and a petition calling for his dismissal, the university defended his appointment, citing academic freedom. Cofnas attracted attention after publishing a blog post in which he catalogued multiple examples of alleged plagiarism by University of Cambridge sociologist Jason Arday, who was found dead soon after resigning from his post. On August 20, 2026, Cofnas was suspended from his position at Ghent University.

Early life and education Cofnas was born in Chicago, Illinois, in 1987. He was raised Jewish and grew up in Manhattan.

In 2018, Cofnas argued in Human Nature that Kevin MacDonald's work promoting antisemitic tropes relied upon "misrepresented sources and cherry-picked facts" and that the "evidence actually favors a simpler explanation of Jewish overrepresentation in intellectual movements involving Jewish high intelligence and geographic distribution."

In 2019, Cofnas published a journal article in Philosophical Psychology arguing for the study of race and intelligence. Nine academics published a joint letter in Philosophical Psychology stating that his paper was not up to academic publishing standards, and was faulty in its methodology, in part by ignoring major studies that disproved his position. They also stated his paper had "racist ideological undertones" and "can reasonably be read as pandering to proponents of scientific racism". Philosophical Psychology editor Cees van Leeuwen later resigned over the controversy.

In 2020 Cofnas published a review on the effects of a vegan diet on intelligence. He has argued it may have negative effects due to vitamin deficiencies.

Emmanuel College, Cambridge

After receiving a Leverhulme Early Career Fellowship grant 2022, Cofnas became an early-career research fellow in the faculty of philosophy at Cambridge, where he taught philosophy of biology. He also became a research associate at Emmanuel College. In a 2014 blog post, Cofnas had said that in a meritocratic system, black people "would disappear from almost all high-profile positions outside of sports and entertainment". Shortly after, a petition called for his firing and prompted investigations by the institutions associated with him. 58 Emmanuel students filed formal complaints against him. The investigations were opposed by prominent academics, including Steven Pinker and Peter Singer, on the grounds of freedom of speech. The University's investigation concluded that certain remarks in the blog post risked breaching its free speech policy, since they could encourage discrimination against black staff and students and might foster a racially hostile environment, though the University did not find that his conduct amounted to discrimination or harassment. Cofnas resigned his teaching and examining responsibilities after the backlash. Emmanuel College dismissed him, finding that his blog post amounted to a "rejection of diversity, equity, and inclusion" and was inconsistent with the college's mission. The university defended his appointment, saying his statements did not violate the law or their ethical code. In a statement, the university said: "We oppose this attack on academic freedom. While we are not endorsing any specific claims Cofnas has made, we believe that academics must be able to put forward controversial or provocative claims without fear of losing their employment."

In July 2026, Cofnas publicly accused University of Cambridge sociology professor Jason Arday of plagiarism in his doctoral thesis. Arday had in 2023 become the youngest black professor in the University's history. In a Substack post, Cofnas wrote that he had run Arday's doctoral thesis through plagiarism detection software and found that "many passages are lifted with minimal editing, sometimes retaining copy-editing mistakes from the original source". He also cast doubt on some other claims Arday had made about his life. Cofnas told Retraction Watch he began scrutinizing Arday's work after he was contacted by a Cambridge faculty member who believed that the University had not responded adequately to previous plagiarism allegations against Arday. His accusations were followed by reports by The Telegraph and The Guardian, and the controversy became the subject of significant attention in British media and on Twitter. Cofnas later joked that the Arday incident is "what happened if you don’t give Cofnas a job.... After the revolution, I'll be the head of the department of eugenics and race science at Harvard." Arday denied the accusations but later resigned as a result of the scandal, which he said had resulted in "an unrelenting level of public scrutiny and personal attack". Shortly after his resignation, Arday was found dead at his London home.

On August 20, 2026, Cofnas was suspended from Ghent University as part of a preliminary disciplinary investigation. On August 28, 2026, Ghent University stated that Cofnas could resume academic activities on the condition that he worked remotely and not engage in any teaching while investigations are pending.