Richard Charles Horton (born 29 December 1961) is a British journalist who serves as editor-in-chief of The Lancet, a United Kingdom–based medical journal. He is an honorary professor at the London School of Hygiene and Tropical Medicine, University College London, and the University of Oslo.

After studying medicine at the University of Birmingham, he joined the liver unit at London's Royal Free Hospital. In 1990, he became assistant editor of The Lancet and five years later became its editor-in-chief in the UK.

He has been a medical writer for The Observer, The Times Literary Supplement and The New York Review of Books. In 2003, he published Second Opinion: Doctors, Diseases and Decisions in Modern Medicine, a book about controversies in modern medicine. In 2005 he wrote "Doctors in society: medical professionalism in a changing world", an inquiry into the future of medical professionalism, for the Royal College of Physicians. He has served in various roles with the World Health Organization (WHO).

Early life and education Richard Horton was born in London. His early education was at Bristol Grammar School.

In 1986 he completed his studies at the University of Birmingham, having gained a Bachelor of Science degree in physiology and a degree in medicine.

Career After completing his early medical training at Birmingham, he joined the liver unit at London's Royal Free Hospital. In 1990, he became assistant editor of The Lancet and in 1993 moved to New York as its North American editor. Two years later he returned to the UK to become its editor-in-chief.

Horton served as a medical columnist for The Observer and has written for The Times Literary Supplement and The New York Review of Books. In 2003, he published his book about controversies in modern medicine, Second Opinion: Doctors, Diseases and Decisions in Modern Medicine. In 2005, as a member of a working party set up by the Royal College of Physicians, he was the chief author of their report into the future of medical professionalism, "Doctors in Society".

Horton is an advocate for the WHO. He has co-chaired a WHO Scientific Advisory Group on Clinical trials registration, chaired the Board of the Health Metrics Network, sat on the External Reference Group for WHO's Research Strategy, and was an external advisory board member for the WHO European Region. Horton was the first president of the World Association of Medical Editors, and was a past-president of the US Council of Science Editors (2005–06). In 2008, he was appointed to a research and analytical management panel as a Senior Associate of the Nuffield Trust. In 2011, he was elected to the US Institute of Medicine. From 2011 to 2015 he co-chaired the independent Expert Review Group on Information and Accountability for Women's and Children' Health.

In 2016, he was appointed by United Nations Secretary-General Ban Ki-moon to an expert group advising the High-Level Commission on Health Employment and Economic Growth, which was co-chaired by presidents François Hollande of France and Jacob Zuma of South Africa.High-Level Commission on Health Employment and Economic Growth – Expert Group World Health Organization. In 2017, he served on the Office of the United Nations High Commissioner for Human Rights (OHCHR) High-Level Working Group on the Health and Human Rights of Women, Children and Adolescents.Leading the realization of human rights to health and through health: Report of the High-Level Working Group on the Health and Human Rights of Women, Children and Adolescents (2017) World Health Organization. In the same year he joined Physicians for Human Rights's board.

Climate change and health professionals A few days after the worldwide mobilisation promoted by the activist movement Extinction Rebellion, Horton asserted in a video that health professionals should involve themselves directly.

In 2024 Horton wrote in The Lancet advocating for the biorenaissance written about by academic Stephen Boyden.

Denial of retraction of discredited vaccine paper

On 28 February 1998 Horton published a controversial paper by Andrew Wakefield and 12 co-authors with the title "Ileal-lymphoid-nodular hyperplasia, non-specific colitis, and pervasive developmental disorder in children" suggesting that vaccines could cause autism. The publication of the paper set off a sharp decline in vaccinations in Europe and America and in subsequent years globally. In the United Kingdom, the Health Protection Agency attributed a large measles outbreak in 2008 and 2009 to a concurrent drop in the number of children receiving the MMR vaccine. Pockets of measles – which can be fatal —have also cropped up in Canada and the United States as a result of parents' decision not to vaccinate.

Horton was heavily criticised for refusing to take action for so long. He was finally forced to retract the paper in February 2010 after the General Medical Council (GMC), which oversees doctors in Britain, said that "there was a biased selection of patients in The Lancet paper" and that Wakefield's "conduct in this regard was dishonest and irresponsible". According to reporter Brian Deer, who exposed Wakefield's paper as fraudulent, Horton opposed the GMC's investigation that led to the retraction, arguing: My own view is that the GMC is no place to continue this debate. But the process has started and it will be impossible to stop. Horton defended his position by saying "I do not regret publishing the original Wakefield paper. Progress in medicine depends on the free expression of new ideas. I worked at the Royal Free from 1988 to 1990 and met him on many occasions. He is a committed, engaging, and charismatic clinician and scientist. He asks big questions about diseases - what are their ultimate causes? - and his ambition often brings quick and impressive results." However, there are groups criticising Horton for contributing to the ongoing dramatic drop of vaccination of children in Europe and America that causes several epidemics and deaths by delaying the retraction of the paper for 12 years.

Royal Society In the 11 May 2005 The Lancet, Horton criticized the British scientific group, the Royal Society, under Lord Rees for its neglect of medicine.

Roy Meadow Horton published an article in 2005 supporting paediatrician Roy Meadow who had been charged with serious professional misconduct by the GMC for giving erroneous and seriously misleading evidence in the Sally Clark trial. This was especially controversial as the article appeared whilst the GMC proceedings were still under way and was published on the first day of Meadow's defence. The article "incensed" Clark, a solicitor who had been the victim of a serious miscarriage of justice. With the support of erroneous statistical (and other) evidence from Meadow, the prosecution wrongly convicted her of murder and she spent over three years in prison before her successful second appeal.

Her husband wrote a rebuttal letter to The Lancet in order to correct Horton's 'many inaccuracies and one-sided opinions' and to prevent them from prejudicing independent observers. James Le Fanu, medical practitioner and writer, also wrote to The Lancet in the same issue and described Horton's words as 'mischief'. The Clark family issued a statement addressing and countering with established fact each of the points making up Horton's biased support of Meadow.

Iraq War

At the Time to Go Demo of 23 September 2006, Horton accused American president George W. Bush and British prime minister Tony Blair of lies and killing children in Iraq. On 11 October, The Lancet published new estimates of the death toll of Iraqi citizens after the US-led invasion in 2003, putting it at a total of 655,000. Some supporters of the invasion of Iraq dismissed it for what they claimed was flawed methodology. Some opponents of the invasion questioned its reliability due to its extreme divergence from other data on the conflict. Some journals and statistical experts were supportive. Other experts in the field were not convinced, saying the estimates were "high, and probably way too high", and that the authors had published a "misinterpretation of their own figures". Others were incredulous that the survey could have been performed as reported under such dangerous conditions.

Iraq's health minister estimated during a press conference in November 2006 that between 100,000 and 150,000 people had died since the invasion in 2003, based on an estimate of around 100 deaths per day brought to morgues and hospitals during 2006, while saying that the Lancet estimates were an "exaggerated number".

Open letter for the people of Gaza In August 2014 The Lancet published an open letter for the people of Gaza, criticising Israel in the wake of the 2014 Gaza conflict.

Horton responded to criticism of the letter by saying that it was "a smear campaign" and that he didn't "honestly see what all this has to do with the Gaza letter. I have no plans to retract the letter, and I would not retract the letter even if it was found to be substantiated". However, Horton subsequently came to Israel's Rambam Hospital for a visit and said that he "deeply, deeply regret[ted] the completely unnecessary polarization that publication of the letter by Paola Manduca caused".

Mark Pepys accused Horton of "wholly inappropriate use of The Lancet as a vehicle for his own extreme political views." In response, Horton said: "How can you separate politics and health? The two go hand-in-hand."

Coronavirus pandemic Horton's initial response to the outbreak of COVID-19 was cautious, telling his Twitter followers on 23 January 2020 that COVID-19 probably "has moderate transmissibility and relatively low pathogenicity." But, as evidence came in from China, on 29 January, he said: "It must now surely be time to declare a Public Health Emergency of International Concern." And, on 31 January, he tweeted about "draconian measures that limit population mobility."'The Lancet editor's selective amnesia', Spectator, 27/3/20; 'The editor of the Lancet speaks out on coronavirus', Labour Briefing, 26/3/20; Richard Horton Tweet, 31/1/20.See also: Matthew Syed, "I challenge the online 'experts' so critical of No 10 on coronavirus: tell us, has Sweden got it right or wrong?", The Sunday Times, 5 April 2020, which says, in part: "Richard Horton, editor of The Lancet, castigated the government for acting too late. 'This is a national scandal,' he said. 'We knew in the last week of January that this was coming.' But in late January he offered a very different view, tweeting that the coronavirus 'has moderate transmissibility and relatively low pathogenicity. There is no reason to foster panic.' I can’t help thinking that some scientists have learnt that in a time of hysteria, you can gain a huge profile by using inflammatory language."

By 7 March, Horton was calling on the UK Government to "act more decisively. They must abandon their fears of the negative short-term public and economic consequences that may follow from restricting public freedoms." And, on 10 March, he called for the "urgent implementation of social distancing and closure policies."'COVID-19: too little, too late', Editorial, The Lancet, 7/3/20; 'Has the Government got its coronavirus strategy right', Daily Telegraph, 13/3/20.

On 18 March, Horton strongly criticised the Government's initial plans "to allow a controlled epidemic", saying: "Any numerate school student could make the calculation. With a mortality of 1% among 60% of a population of some 66 million people, the UK could expect almost 400,000 deaths."Richard Horton, Scientists have been sounding the alarm on coronavirus for months. Why did Britain fail to act, Guardian, 26/3/20.