Andaingo (also Andaingo Gara) is a rural municipality in Madagascar. It belongs to the district of Moramanga, which is a part of Alaotra-Mangoro Region. The population of the commune was 19656 in 2018.

Primary and junior level secondary education are available in town. The majority 85% of the population of the commune are farmers. The most important crop is rice, while other important products are cassava and taro. Services provide employment for 15% of the population.

Andaingo Gara has a railway station on the Moramanga - Alaotra Lake line.

There is a biofuel thermal power station in Andaingo. It has a capacity of 75 kw.

Ambodirano, a village of this municipality.

18°12′S 48°17′E / 18.200°S 48.283°E / -18.200; 48.283