John Michael Attenborough (/ˈætənbrə/; 1 January 1928 – 9 November 2012) was an English executive in the motor industry and then a financial adviser.^[1] He was the younger brother of director and actor Richard Attenborough, and the naturalist Sir David Attenborough.^[2]

Like his brothers, he was educated at Wyggeston Grammar School for Boys in Leicester.^[3] After National Service, he studied modern languages at Clare College, Cambridge.^[2][3] He worked in the motor trade and became a managing director of Mann Egerton, heading their Rolls-Royce division in Berkeley Street. He then became the head of the British operations of Italian car manufacturer Alfa Romeo. He finally ran a distribution business for motor cars in Dorset before retiring from the motor trade and becoming a financial adviser.^[4]

He was diagnosed with progressive supranuclear palsy (PSP) and died at his home in Poole, Dorset, on 9 November 2012, aged 84.^[3]