List of dangerous snakes

As of 2025, there are 3,971 known snake species worldwide, with around 600 venomous species. This is an overview of the snakes that pose a significant health risk to humans, through snakebites or other physical trauma.

The varieties of snakes that most often cause serious snakebites depend on the region of the world. In Africa, the most dangerous species include black mambas, puff adders, and carpet vipers. In the Middle East, the species of greatest concern are carpet vipers and elapids; in Central and South America, Bothrops (including the terciopelo or fer-de-lance) and Crotalus (rattlesnakes) are of greatest concern. In South Asia, it has historically been believed that Indian cobras, common kraits, Russell's viper, and carpet vipers were the most dangerous species; however, other snakes may also cause significant problems in this region. While several species of snakes may cause more bodily harm than others, any one of these venomous snakes is still very capable of causing a human fatality should a bite go untreated, regardless of venom capabilities or behavioral tendencies.

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