Antafiambotry is a municipality (French: commune, Malagasy: kaominina) in Madagascar. It belongs to the district of Ambanja, which is a part of Diana Region. According to 2018 census the population was 6,614.

Primary and junior level secondary education are available in town. The majority 50% of the population works in fishing. 49% are farmers. The most important crop is coffee, while other important products are seeds of catechu and pepper. Services provide employment for 1% of the population.

Nosy Faly is part of the territory of the commune of Antafiambotry.

13°22′S 48°29′E / 13.367°S 48.483°E / -13.367; 48.483