It is endemic to the mountains of coastal southeastern Brazil in Rio de Janeiro, Espírito Santo, and São Paulo states.

[2] The specific name ohausi honors Friedrich Ohaus, a German physicist and herpetologist.

[4] Fritziana ohausi occurs in primary forests at elevations of 600–1,200 m (2,000–3,900 ft) asl.

The female carries eggs on her back and later deposits the tadpoles in bamboo stems.

[1] Fritziana ohausi is a very common species that faces no major threats; it tolerates some habitat disturbance, and can be found anywhere where there are trees and bamboo.