Sequoia Park Zoo, Zoo in Eureka, United States.

Sequoia Park Zoo is a 7-acre (2.8 ha) zoo operated by the City of Eureka, California, holding about 200 vertebrates and hundreds of invertebrates across roughly 54 species. It sits inside a larger park complex with 60 acres (24 ha) of mature second-growth coast redwood forest, Eureka's largest public playground, a duck pond and gardens with many rhododendron varieties. Exhibits include the Barnyard, the Secrets of the Forest building, Watershed Heroes and the Bear & Coyote habitat.

The zoo was founded in 1907, making it California's oldest zoo. Its creation came during an era when preserving and displaying wildlife became increasingly important to American communities.

The zoo's name comes from the surrounding Sequoia Park, whose 60 acres of second-growth coast redwood are Eureka's largest public playground, duck pond and rhododendron gardens. The "Barnyard" exhibit teaches where food comes from and lets visitors meet goats, sheep, chickens, llamas, alpacas and donkeys. The "Bear & Coyote" habitat's three black bears, Tule, Ishŭng and Nabu, were named with funding from the Bear River Band of the Rohnerville Rancheria.

The zoo is open daily except Mondays in winter. The 7-acre grounds sit within a larger park complex that also holds a 60-acre redwood forest, Eureka's largest public playground and a duck pond. The Redwood Sky Walk, just under a quarter of a mile long, is ADA accessible and rises over 100 feet above the forest floor.

The Redwood Sky Walk, finished in 2021, runs just under a quarter of a mile and is the longest sky walk in the western United States. It is ADA accessible and carries visitors more than 100 feet above the forest floor of the surrounding second-growth coast redwoods.