Antalaha is a district in northern Madagascar

Madagascar

The Republic of Madagascar is an island country located in the Indian Ocean off the southeastern coast of Africa...

. The district contains the Masoala peninsula, and is limited by Antongil Bay

Antongil Bay

Helodranon' Antongila , more commonly called Antongil Bay in English, is the largest bay in Madagascar. It is at the northern end of the east coast of the island and for administrative purposes it is within Analanjirofo Region. The bay is about 60 km long and 30 km wide, and is formed by...

 in south-west and Indian Ocean

Indian Ocean

The Indian Ocean is the third largest of the world's oceanic divisions, covering approximately 20% of the water on the Earth's surface. It is bounded on the north by the Indian Subcontinent and Arabian Peninsula ; on the west by eastern Africa; on the east by Indochina, the Sunda Islands, and...

 on east. It's a part of Sava Region

Sava Region

Sava is a region of Madagascar. Its capital is Sambava. Until 2009 Sava belonged to Antsiranana Province. The region is situated at the northern part of the east coast of Madagascar. It is bordered by Diana to the north, Sofia to the west, and Analanjirofo to the south. The population was estimated...

 and borders the districts of Sambava

Sambava District

Sambava is a district in northern Madagascar. It's a part of Sava Region and borders the districts of Antalaha in south, Andapa in south-west, Ambilobe in north-west and Vohemar in north. The area is and the population was estimated to be 237,488 in 2001....

 in north, Andapa

Andapa District

Andapa is a district in northern Madagascar. It's a part of Sava Region and borders the districts of Ambilobe and Sambava in north, Antalaha in east, Maroantsetra in south and Befandriana Nord and Bealanana in west. The area is and the population was estimated to be 147,772 in 2001.The district is...

 in north-west and Maroantsetra in west. The area is 7085 km² (2,736 sq mi) and the population was estimated to be 186,322 in 2001.

The district is divided into 14 communes.