Brown snake

• Pseudonaja, a genus of Australian brown snakes
• *The eastern brown snake Pseudonaja textilis, one of the world's most venomous snakes
• Storeria, a genus of North American brown snakes
• Elapognathus minor, a species of Australian short-nosed, or little brown, snake
• Pseudechis australis, a species of Australian mulga, or king brown, snake