Jilakin Rock, Rock formation in Shire of Kulin, Western Australia.

Jilakin Rock is a natural rock formation that rises from flat plains in the central Wheatbelt region. It sits about 15 kilometers east of Kulin and overlooks Jilakin Lake.

The settlement near the rock was named Jilakin in 1913, but authorities renamed it to Kulin in 1914 when the railway reached the area. This change marked how rail connections shaped local development.

The Noongar people tell of jarrah trees at the rock's base originating from spears that two groups planted as a friendship symbol. This story connects the land to relationships between different communities from long ago.

A parking area and picnic tables sit at the base of the rock, and camping is not permitted. The rock rises about 15 km east of Kulin and 25 km south of Kondinin, overlooking Jilakin Lake, so visits are made as day trips from those towns.

The jarrah stand at the base of the rock is the most isolated known: about 150 km east of the main jarrah belt. The trees grow on water running off the granite and on quarry soils at the base. Their presence led the area to be declared an A Class Reserve in 1914, banning timber cutting.