The RSPCA is investigating the shocking discovery of two dead dogs in Kalgoorlie.

The organisation's local inspector received a call on Thursday night from a man who found the dogs in his yard on McLaren Street in Boulder.

A small dog was found disembowelled and a larger dog was found dead, and had apparently been beaten.

The dogs did not belong to the man, and he had not seen the dogs around the neighbourhood before.

RSPCA WA chief inspector Amanda Swift referred to the discovery as a "senseless act of intentional cruelty".