Hello how may I help you? I have a world records question. That's why i'm here. What is your question? What was the biggest snake ever? Are you looking for the biggest snake type or the biggest individual snake? The biggest individual snake. The biggest snake in the world is a Reticulated Python named Medusa. How big was it? It measured 25 feet 2 inches long. Wow thanks for the info. Glad I could help. Have a nice day.