Tanambao Ambony
Country	Madagascar
Region	Atsimo-Andrefana
District	Betioky Sud
Population  (2001)[1]
• Total	3,000
Time zone	UTC3 (EAT)

Tanambao Ambony is a town and commune (Malagasy: kaominina) in southwest Madagascar. It belongs to the district of Betioky Sud, which is a part of Atsimo-Andrefana Region. The population of the commune was estimated to be approximately 3,000 in 2001 commune census.^[1]

Only primary schooling is available. The majority 60% of the population of the commune are farmers, while an additional 38% receives their livelihood from raising livestock. The most important crops are cassava and tomatoes, while other important agricultural products are maize and rice. Services provide employment for 2% of the population.^[1]