Wolterstorffina chirioi is a species of toad in the family Bufonidae. It is endemic to Cameroon and known only from Mount Oku, its type locality. It inhabits Afro-Alpine vegetation and grassland at the summit of Mount Oku at 3,000 m (9,800 ft) asl. This habitat is threatened by overgrazing and fire. Given its limited high-altitude range, it is potentially affected by climate change too.