For other bodies of water with the same name, see Lake George.

Lake George is a lake in south-eastern New South Wales, Australia. It is renowned for emptying and filling on a cyclic basis, for the treachery of its waters when full (a number of people have drowned), and for a mirage which makes it appear full when it is in fact empty. It was named for King George III by British settlers; however, in the local indigenous language, its name was Werriwa. It is the site of a notorious massacre of an entire tribe of Aborigines in the nineteenth century.