John Seymour (12 June 1914 – 14 September 2004) was a British author and pioneer in the self-sufficiency movement. In 1976, he wrote The Complete Book of Self-Sufficiency. He had multiple roles as a writer, broadcaster, environmentalist, agrarian, smallholder and activist; a rebel against: consumerism, industrialisation, genetically modified organisms, cities, motor cars; an advocate for: self-reliance, personal responsibility, self-sufficiency, conviviality (food, drink, dancing and singing), gardening, caring for the Earth and for the soil.