The Redwood Empire (also Redwood Coast or North Coast) is a region of California that stretches from San Francisco and the Golden Gate Bridge to the Oregon coast. It is composed of eight counties, all but one of which front the Pacific Ocean or San Francisco Bay, and is named from the Coast Redwood (a different species to the Giant Sequoia) which only grows within 80 km (50 miles) of the coast and can be up to 112 m tall. There is some overlap between the Redwood Empire and California's Wine Country.

The Redwood Empire is generally thought to consist of Marin, Sonoma, Napa, Lake, Mendocino, Humboldt and Del Norte counties (Josephine County, Oregon is sometimes included).

The region includes Humboldt Redwoods State Park, Prairie Creek Redwoods State Park, Del Norte Coast Redwoods State Park, Jedediah Smith Redwoods State Park and Redwood National Park. Together these parks have more than 45 percent of all the old-growth redwood forest in California.