Biddelia, Western Australia

Biddelia is a rural locality of the Shire of Nannup in the South West region of Western Australia. The Vasse Highway runs north–south through the centre of the locality and the area west of the highway is almost completely made up of the Hilliger National Park while the Easter National Park lays along and east of the highway within Biddelia. Most of the remainder is covered by state forest.

Biddelia and the Shire of Nannup are located on the traditional land of the Bibulman and Wardandi people of the Noongar nation.

The locality is home to the heritage listed Biddelia homestead, which dates back to 1876, built by the Dickson family who settled in the area in 1854.