Richard Brian Marcel Fadden OC (born September 1951) is a Canadian former civil servant who was the national security advisor to the prime minister of Canada and an associate secretary to the cabinet.

Other postings included:[3] Fadden served as Director of the Canadian Security Intelligence Service (CSIS) from June 2009, when he replaced Jim Judd, until his abrupt resignation in mid-May 2013.

Fadden made headlines in June 2010 by announcing that foreign countries were both performing industrial esponiage against Canada, and trying to influence Canadian politicians.

[5] Although no countries were named, the National Post, Globe and Mail, CBC, CTV, and several other Canadian media outlets have speculated that Fadden is referring to China.

[9] Fadden's concerns have since been borne out by a series of revelations, including a Financial Times investigation that cast light on "an internal document prepared by the overseas section of Beijing’s United Front Works Department" that showed how China was influencing electoral politics in foreign countries.