Hello how may I help you? What was the biggest snake in history? Do you want to know the biggest individual snake, or the biggest type of snake? The biggest type. The biggest type of snake is the Grass Snake that comes in at a whooping 45 feet. That's  creepy. Extremely, it is only beating out the tree snake by a few feet, those are around 42 feet long. Ok, should I try to fight one if I see one? Some people have been known to lasso them and ride on their backs, so the decision is yours. Oh man, I'm going to learn how to do that! Thanks! Is there anything else I can help you with? Nope, that's all!