Bludger may refer to:
*
Bludger (fish)
The bludger (''Carangoides gymnostethus''), also known as the bludger trevally, nakedbreast trevally or Bleeker's jackfish, is a widespread species of large marine fish in the jack family, Carangidae. The bludger inhabits the tropical and subtrop ...
, a tropical to subtropical fish
*
Bludger (Quidditch)
Quidditch is a fictional sport invented by author J.K. Rowling for her fantasy book series ''Harry Potter''. It first appeared in the novel ''Harry Potter and the Philosopher's Stone'' (1997). It is a dangerous but popular sport played by wit ...
, a type of ball used in the game Quidditch in the fictional ''Harry Potter'' universe
*Bludger,
Australian slang
Australian English is a major variety of the English language spoken throughout Australia. Most of the vocabulary of Australian English is shared with British English, though there are notable differences. The vocabulary of Australia is drawn ...
for a lazy person
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