Hibbertia truncata, commonly known as Port Campbell guinea-flower,[2] is a species of flowering plant in the family Dilleniaceae and is endemic to Victoria in Australia.

It is a prostrate to low-lying shrub with hairy foliage, broadly egg-shaped leaves with the narrower end towards the base, and yellow flowers with ten to twelve stamens joined in a single cluster on one side of two hairy carpels.

Hibbertia truncata is a prostrate to low-lying shrub that typically grows to a height of up to 40 cm (16 in) and has hairy foliage.

[3][4] Hibbertia truncata was first formally described in 1998 by Hellmut R. Toelken in the Journal of the Adelaide Botanic Gardens.

[3] This hibbertia usually grows in coastal heath on limestone in a few places between Peterborough and Port Campbell in Victoria, and is locally common.