Greyia flanaganii, commonly known as the Kei bottlebrush, is a species of plant in the Francoaceae family.

Greyia flanaganii is one of the related species of the taxonomically isolated and endemic southern African family, the Greyiaceae.

Greyia flanaganii is endemic to the Eastern Cape Province of South Africa.

It is present in the hills and rocky valleys around Grahamstown, but may be found from Queenstown to Komga in the Eastern Cape.

It is indicated as rare on the SANBI red data list, but is not threatened by extinction.