Conostylis serrulata is a flowering plant in the family Haemodoraceae and is endemic to the south-west of Western Australia.

It is a small perennial with yellow cream flowers and flat, green leaves.

[2] Conostylis serrulata was first formally described in 1810 by Robert Brown and the description was published in Prodromus Florae Novae Hollandiae et Insulae Van Diemen.

[3][4] The specific epithet (serrulata) is in reference to the "finely serrate" leaves.

[5] This conostylis grows in laterite gravel on the south coast of Western Australia.