Kynoch Inlet adopted 7 March 1933 on Geological Survey sheet 278A, Prince Rupert, as listed in the 1930 BC Gazetteer; not "East Arm Mussel Inlet" as labelled on earlier maps or charts (titles/dates not cited). (file P.3.33)

Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office

According to P.M. Monckton, BCLS, "Kynoch" is the [Indigenous] name for the inlet. Meaning/significance not recorded.

Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office

Kynoch Inlet was the original homeland of the Xai’xais (Xixis, Haihais) people, who were members of the Heiltsuk First Nation. They moved to Klemtu about 1875 and joined with the Kitasoo, a Tsimshian group whose traditional territory lay around Laredo Sound, Klemtu was chosen as a village site for its proximity to coastal shipping routes. Kynoch Inlet, noted for its waterfalls and a healthy population of grizzly bears, is a protected area, part of the 91,000-ha Fiordland Conservancy.

Source: Scott, Andrew; "The Encyclopedia of Raincoast Place Names"; Harbour Publishing, Madeira Park, 2009, page 321.