John Richard Thomas Sullivan OBE was an English television scriptwriter responsible for several British sitcoms, including Only Fools and Horses, Citizen Smith and Just Good Friends.

Only Fools and Horses.... is a British television sitcom created and written by John Sullivan. Seven series were originally broadcast on BBC One in the United Kingdom from 1981 to 1991, with sixteen sporadic Christmas specials aired until the end of the show in 2003. Set in working-class Peckham in south-east London, it stars David Jason as ambitious market trader Derek "Del Boy" Trotter and Nicholas Lyndhurst as his younger half-brother Rodney Trotter, alongside a supporting cast. The series follows the Trotters' highs and lows in life, in particular their attempts to get rich. Critically and popularly acclaimed, the series received numerous awards, including recognition from BAFTA, the National Television Awards, and the Royal Television Society, as well as winning individual accolades for both Sullivan and Jason. It was voted Britain's Best Sitcom in a 2004 BBC poll.