Mahanoro is a district of Atsinanana in Madagascar. The district has an area of 3,763 km2 (1,453 sq mi), and the estimated population in 2020 was 299,459.

Communes

The district is further divided into 11 communes:

Rivers

  • The small Masora River (at Masomeloka)
  • The Mangoro River (at Mahanoro).