Isopogon attenuatus is a species of plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a shrub with oblong to spatula-shaped or linear leaves and spherical heads of yellow flowers.This isopogon grows in woodland with a heathy understorey, in scattered population from near Perth to Albany and Mount Manypeaks, in the south-west of Western Australia.
Isopogon attenuatus is listed in the following regions: