Drosera grievei is a pygmy sundew that grows near Ravensthorpe, Western Australia.

Drosera grievei is a small sundew that grows around 1-2 cm in diameter. The leaves are semi-raised with long thin petioles are round laminae. The flower scapes are sparesly covered with minute glands. The flower buds are distinctive in that the sepals are very broad and overlap each other. This gives the buds a bulging, ball-like appearance. The flowers are white.

The species grows in hilly environments inland of Ravensthorpe, Western Australia. It is associated with sandy clay, often with a bit of laterite. Drosera grievei has a similar rosette to Drosera trichocaulis, which shares its range. It is distinguished by its smooth scapes, which only have minute glands (those of D. trichocaulis are hairy).