Bufo grandisonae Poynton & Haacke, 1993 Poyntonophrynus grandisonae (common name: Grandison's toad or Mossamedes toad) is a species of toad in the family Bufonidae.

[1][2] Its range may be more widespread than currently known, including the nearby Iona National Park.

It is only known from a few specimens because there has not been much research in the surrounding area, and thus its 2014 IUCN Red List of Threatened Species assessment remained at "Data Deficient".

[1] It is named for Alice Georgie Cruickshank Grandison (born 1927), a Curator of Herpetology at Natural History Museum, London.

[3] Its natural habitats are granitic inselbergs in dry, sandy area.