Canal des Pangalanes

Atsinanana is a region in eastern Madagascar. It borders Analanjirofo region in north, Alaotra-Mangoro in west, Vakinankaratra and Amoron'i Mania in southwest and Vatovavy-Fitovinany in south.

Atsinanana region is divided into seven districts:

The capital of the region is Toamasina, and the population was estimated to be 1,117,100 in 2004. The area of Atsinanana is 21,934 km² (8,469 sq mi).