Antsahanoro is a commune (Malagasy: kaominina) in northern Madagascar. It belongs to the district of Antalaha, which is a part of Sava Region. According to 2001 census the population of Antsahanoro was 16,253.

Primary and junior level secondary education are available in town. The majority 98% of the population are farmers. The most important crops are rice and vanilla, while other important agricultural products are coffee and cloves. Services provide employment for 2% of the population.

14°50′S 50°8′E / 14.833°S 50.133°E / -14.833; 50.133