Hi Dasha! Great question! Most octopuses only live to be 1 or 2 years old. This is because they have to put a LOT of their energy into reproduction, so they usually die pretty soon after they have their babies.

But, some species like the Giant Pacific Octopus can live to be up to 5 years old! Of you want to read more about the Giant Pacific Octopus, here is an awesome article about them from National Geographic: here.