Timothy J. McKay (1947 – July 30, 2006) was an American environmentalist and executive director of the non-profit Northcoast Environmental Center, a transportation advocacy organization, in Arcata, California.
McKay graduated from Humboldt State University and was a long-term resident of Trinidad, California.
McKay worked on projects for the protection of northern spotted owl, the preservation of the Siskiyou Wilderness and in the investigation of the death of salmon in the Klamath River.
On July 30, 2006, McKay died of a heart attack in Stone Lagoon of Humboldt Lagoons State Park in Humboldt County, California, U.S.. He was 59.