Albertus Zwier "Alby" Mangels (born November 16, 1948) is a Dutch-born Australian adventurer and documentary film-maker widely remembered for his "World Safari" adventure travel films (World Safari I, World Safari II, and World Safari III). Mangels, who immigrated to Australia as a child in 1956, worked in a large variety of jobs, his last being for John Andrae in Murray Bridge doing brickwork. He set off in 1971 with friend John Fields on what was supposed to be a one-off trip. It turned into a six-year odyssey through several continents, which they filmed. The resulting film, first shown in Australia in 1981, was a considerable success and Mangels continued to travel through the 1980s, filming all the way. Two more World Safari films were made from this subsequent material.