Hello how may I help you? What was the biggest snake in history? Ok, can you specify if you mean the biggest individual snake or type of snake? Biggest individual. The biggest individual snake is a dragon snake found in north korea he is 66 ft long. Ooohhh, can I try to catch him? No you cannot as he is considered very deadly. I'm deadlier. I could take him. Oh ok I hope you're armed and ready. Yup, I've got my butter knife! Great! Good luck visiting the worlds largest snake.