Harold Robinson "Harry" Humby (8 April 1879 – 23 February 1923) was a British sport shooter, who competed at the 1908, 1912 and 1920 Summer Olympics.In the 1908 Olympics he won a gold medal in the team small-bore rifle event, silver medal in the stationary target small-bore rifle event and was eighth in the disappearing target small-bore rifle event.Four years later he won a silver medal in the team clay pigeons event and was fourth in individual trap event.