Chilabothrus exsul, the Abaco Island boa or Northern Bahamas boa, is a boa species found in the Bahamas. No subspecies are currently recognized. Like all other boas, it is not venomous.
Slender and terrestrial with an iridescent reddish sheen. It grows to a maximum of in length and feeds on small mammals, birds and lizards.
Found in the Bahamas on Grand Bahama Island and Great Abaco Island, including Elbow Cay and Little Abaco Island. The type locality given is "Near Blackrock (approximately 26ð49'N. lat. and 77ð25'30"W. long.) on the east coast of Great Abaco in the Bahamas."