Amphipogon setaceus is a species of flowering plant in the grass family Poaceae, native to Western Australia.

[1] It grows in seasonally wet areas, swamps, and fringing watercourses from Nannup to Albany.

It flowers in spring and early summer in a greyish head of multiple spikelets.

[3] The species was first described by Robert Brown in 1810 as Diplopogon setaceus.

[3] In 2002, Terry Desmond Macfarlane transferred it to the genus Amphipogon, a placement accepted by Plants of the World Online and the Australian Plant Census as of November 2024[update].