Robert Brown (23 March 1842 – 26 October 1895) was a Scottish scientist, explorer, and author.
Brown was born in Camster, Caithness, and studied in the universities of Edinburgh, Leyden, Copenhagen, and .
He took the habit of referring to his home town, Campster (Campsterianus), to distinguish himself from his famous contemporary of the same name: Robert Brown of Montrose. He visited Spitzbergen, Greenland, and the western shore of Baffin Bay while still an undergraduate, and subsequently carried on scientific investigations among the islands of the Pacific and on the Venezuelan, Alaskan, and Bering shores, leading an expedition to map the interior of Vancouver Island and writing much on the fauna and flora of those countries.
Brown arrived at Fort Victoria in early 1863 to explore the Colony of Vancouver Island. Later that year, he explored from Barkley Sound to Kyuquot. The following year he accepted the leadership of the Vancouver Island Exploring Expedition, a venture which covered about 2000 km over four and a half months. The expedition named many of the mountains, rivers and lakes of Vancouver Island.; members of expedition, which included Frederick Whymper as its artist, insisted that Browns River be named after him. They found gold at the Leech River, causing much excitement, but the results were limited to $60,000. Brown attributed more importance to their discovery of coal in the Comox Valley.