What is the largets cat?

The largest naturally occuring big cat is the Siberian Tiger.

Males have been recorded to be 3.2 meters in body length, excluding the tail.

He/she weighs about 87I lb.

The Lion is the second largest cat.

The Liger, the offspring of a male Lion & and a female Tiger is bigger.

But Ligers are usually not counted, as it's an unaturally occuring hybrid, created by human intervention and not available in the wild.