Laguna Coast Wilderness Park, Protected wilderness area in the San Joaquin Hills, Orange County, California, US

Laguna Coast Wilderness Park covers 7,000 acres (2,800 ha) of coastal canyons and ridgelines in the San Joaquin Hills around Laguna Beach. It holds the only natural lakes in Orange County and some of Southern California's last undeveloped coastal canyons. Coastal sage scrub, cactus and native grasses dominate; most trails climb toward a 1,000-foot (300 m) high point.

In 1960 bookstore owner James Dilley began advocating for a greenbelt around Laguna Beach. In 1990 voters approved a $20 million bond to buy Laguna Canyon and block development there. The Laguna Canyon Foundation, formed after that vote, purchased more open space and established the park in 1993.

The James and Rosemary Nix Nature Center on Laguna Canyon Road shows exhibits and runs guided hikes and educational programs, staffed with Laguna Canyon Foundation volunteers who help Orange County Parks manage the canyons. The park's name comes from Laguna Beach, the city it surrounds. In 2015 the center appeared in Laguna Beach Eco Heroes, a documentary by The My Hero Project.

Trails are maintained for hiking and mountain biking, ranging from beginner to expert; most gain height, reaching a maximum of 1,000 feet (300 m). Several trails lead down to downtown Laguna Beach. The James and Rosemary Nix Nature Center on Laguna Canyon Road is a starting point for exhibits, guided hikes and orientation.

The park is known for freshwater lakes that are the only natural lakes in this California region and attract rare animal species. These water bodies play a key role in protecting endangered birds and other creatures that would not otherwise survive in this drier area.