The Hewitt's moss frog (Arthroleptella hewitti) is a species of frog in the Petropedetidae family. It is found in South Africa and possibly Lesotho. Its natural habitats are temperate forests, temperate shrubland, and rivers.
This species is known from KwaZulu-Natal Province and East Griqualand (in Eastern Cape Province), southeastern South Africa. It occurs up to 2,700 m asl.