King Rat may refer to:
Arts and entertainment 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 (band), a punk rock band from Denver, Colorado, founded in 1994 "King Rat" (song), a 2-track vinyl promo by Modest Mouse, released in 2007 King Rat, a traditional character and main antagonist in the pantomime Dick Whittington
Other uses King Rat, the head of the Grand Order of Water Rats, a music hall society of Great Britain "King Rat", nickname of Billy Wright (loyalist) (1960–1997), Ulster loyalist paramilitary leader during the Troubles in Northern Ireland, and an autobiography he wrote detailing his activities Uromys rex, a species of rat
See also Rat king (disambiguation)