Bahia Honda Key

Bahia Honda State Park
IUCN category IV (habitat/species management area)
Bahia Honda’s beach in April 2019
LocationMonroe County, Florida, United States
Nearest cityMarathon, Florida
Coordinates24°39′34″N 81°15′42″W / 24.659576°N 81.261578°W / 24.659576; -81.261578
Area524 acres (2.12 km2)
Established1961
Governing bodyFlorida Department of Environmental Protection

Bahia Honda (/ˈbə ˈhɒndə/ BAYHON-də, Spanish: [baˈia ˈonda]; lit.'deep bay') is an island in the lower Florida Keys.

U.S. 1 (the Overseas Highway) crosses the key at approximately mile markers 36-38.5, between Ohio Key and Spanish Harbor Key 12 miles (19 km) west of Marathon, close to the west end of the Seven Mile Bridge.

The island is virtually uninhabited, being home to the 524-acre (212-hectare) Bahia Honda State Park. Founded in 1961, the park occupies most of the island. The channel at the island's west end is one of the deepest natural channels in the Florida Keys.