A new species, Bazzania engelii, is described from two sites on Stockton Plateau, a sloping plateau between 200 and 1100 m asl northeast of Westport, South Island, New Zealand. Bazzania engelii is compared with other New Zealand Bazzania species but is not placed in a subgenus. The species has a superficial similarity to B. nitida, but the frequent production of ventral-intercalary branches with normal leaves suggests a relationship with B. exempta.