Well, leopards and cougars are pretty different. Does it have spots/rings? It looks like it has black lines (why I thought it was a tiger), but now I see that it looks more like black blotches. That'd make it a leopard, out of those two choices. But, if you're not sure that it is either a leopard or cougar, it could be a jaguar. I think those are the only cats that have black spots/rings and that are that big. No cheetah. To small.