A western Sydney woman has been charged over the stabbing of a puppy, which will have to be put down.

Officers were called to a home on Bidwill's Chestnut Crescent just after 2am on Monday to find a five-month-old pit bull terrier named Mason with multiple stab wounds.

The puppy was taken to a vet and is expected to be euthanised on Monday, police say.

A 21-year-old woman arrested at the home has been charged with torturing, beating or seriously injuring an animal, and is due to appear at Mount Druitt Local Court on March 25.

AAP