Pilbara Pebble Mouse
Pseudomys chapmani
- Least concern
- Card rarity: Common
- Mammals

Western pebble-mound mouse or Ngadji is a burrowing and mound building rodent in the family Muridae. They occur in the Pilbara, a remote region in the northwest of Australia.
Classification
- Class
- Mammalia
- Order
- Rodentia
- Family
- Muridae
- Genus
- Pseudomys