George Joshua Richard Monbiot ( MON-bee-oh; born 27 January 1963) is a British journalist, author, and environmental and political activist. He writes a regular column for The Guardian and has written several books.

Monbiot grew up in Oxfordshire and studied zoology at the University of Oxford. He then began a career in investigative journalism, publishing his first book Poisoned Arrows in 1989 about human rights issues in West Papua. In later years, he has been involved in activism and advocacy related to various issues, such as climate change, British politics and loneliness. In Feral (2013), he discussed and endorsed expansion of rewilding. He is the founder of The Land is Ours, a campaign for the right of access to the countryside and its resources in the United Kingdom. Monbiot was awarded the Global 500 in 1995 and the Orwell Prize in 2022.