Chacraraju or Chakraraju (possibly from Quechua chakra little farm; field, land sown with seed, rahu snow, ice, mountain with snow) is a mountain in the Cordillera Blanca range in the Andes of Peru. The mountain has two distinctive peaks: Chacraraju Oeste (west summit; 6,108 metres (20,039 ft)) and Chacraraju Este (east summit; 6,001 metres (19,688 ft)). Chacraraju is located in Huaylas Province, Ancash; south and southeast of Pirámide and east of Lake Parón. The peak is accessible from the Pisco base camp at Cebollapampa.

Chacraraju is considered the steepest and the most difficult-to-climb six-thousander in the Andes. A French expedition led by Lionel Terray first climbed the mountain on 31 July 1956 (Chakrarahu Oeste) and on 5 August 1962 (Chakrarahu Este) using what have since become the normal routes (northeast face and northeast ridge). Greg Mortimer was badly injured during a later attempt to climb the mountain.

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