Hydrophis belcheri, commonly known as the faint-banded sea snake or Belcher's sea snake, is an extremely venomous species of elapid sea snake. It has a timid temperament and would normally have to be subjected to severe mistreatment before biting. Usually those bitten are fishermen handling nets, although only a quarter of those bitten are envenomated since the snake rarely injects much of its venom. Because of this, and its docile nature, it is generally not regarded.