Our Leader, Comrade Napoleon, Father of All Animals, Terror of Mankind, Protector of the Sheep-fold, Ducklings' Friend is a fictional character and the main antagonist in George Orwell's Animal Farm. While he is at first a common farm pig, he gets rid of Snowball, another pig who is his rival for power. He then takes advantage of the animals' uprising against their masters to eventually become the tyrannical "President" of Animal Farm, which he turns into a dictatorship.

In the French-language version of Animal Farm, the pig is named Cesar.