Blue and John Crow Mountains National Park is a national park in Jamaica. The park covers 495.2 km2 and accounts for 4.5% of Jamaica's land surface.
The park is globally known for its biodiversity. This park is the last of two known habitats of the giant swallowtail butterfly (Papilio homerus), the largest butterfly in the Western Hemisphere and also the habitat for the endangered Jamaican blackbird (Neospar nigerrimus), a refuge for the Jamaican boa (Epicrates subflavus) and the Jamaican hutia (Geocapromys brownii).
The park was inscribed to be a UNESCO World Heritage Site for mixed criteria (cultural and natural) in 2015.