David L. Humphreys (born 1939 in Kingston, Ontario) is a Canadian journalist, writer, lobbyist, and consultant.
He graduated from the University of Manitoba with a Bachelor of Arts degree in 1960, and edited the campus paper The Manitoban in 1959–60.
Humphreys then worked as an executive assistant to the minister of Indian and Northern Affairs in the Clark government.
In 1983, he founded the Humphreys Public Affairs Group Inc., in Ottawa, which has specialized in housing and real estate issues.
Former Governor General David Johnston presented him with the Michener-Baxter Special Award for lifetime achievement in journalism.