Poyntonophrynus parkeri (common name: Parker's toad, Mangasini toad) is a species of toad in the family Bufonidae. It is found in central Tanzania and in southwestern Kenya. It is a poorly known species and its distribution might be broader. Its natural habitats are sparsely wooded grassland, savanna, and flood plains. Breeding takes place in temporary pools. Threats to it are unknown, but it could be locally affected by overgrazing and human settlement.