A rat king is a rare phenomenon where a group of rats' tails become entangled.

Rat King or Ratking may also refer to:

Fictional characters

• Rat King, in Adventure Time
• Rat King, in The Amazing Maurice and his Educated Rodents
• Rat King, in Hilda
• Rat King, in The Penguins of Madagascar
• Rat King (Teenage Mutant Ninja Turtles), in the Teenage Mutant Ninja Turtles multimedia franchise

Other uses

• Ratking (novel), a 1988 novel by Michael Dibdin
• Ratking (group), a hip hop group from New York City
• Rat King, a 2012 Finnish thriller film by Petri Kotwica
• " The Rat King", 2015 season 5 episode 5 of Grimm
• Ratking (ラットキング, rattokingu), another English equivalent for the yakuza term

See also

• "The King of Rats", a short story prequel set in the world of the young adult trilogy The Sin Eater's Daughter by Melinda Salisbury
• King Rat (disambiguation)

This disambiguation page lists articles associated with the title Rat king.
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