King Rat may mean:
- Uromys rex, a species of rat
- King Rat (1962 novel), a novel by James Clavell set in World War II
- King Rat (film), released in 1965, based on the James Clavell novel
- King Rat (1998 novel), an urban fantasy novel by China Miéville
- "King Rat" (song), a 2 track vinyl promo by Modest Mouse
- King Rat is the head of the Grand Order of Water Rats, a music hall society of Great Britain
- King Rat, the nickname of the Ulster loyalist Billy Wright, and an autobiography he wrote detailing his activities
- King Rat is a traditional character and main antagonist in the pantomime Dick Whittington
|This disambiguation page lists articles associated with the title King Rat.
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