Sir John Welleseley Gunston, 3rd Baronet (born July 1962) is the third Baronet of Wickwar in the County of Gloucestershire in the Baronetage of the United Kingdom. He is perhaps better known for his exploits as a photographer in Afghanistan in the 1980s. In the 1990s Gunston set up a documentary production company with , the widow of his good friend Rory Peck with whom he traveled inside Afghanistan during the 1980s. In 1995 Gunston was also co-founder with Juliet Peck of the Rory Peck Award & Trust.