Fiadanana may refer to several municipalities in Madagascar:
Fiadanana, Ambohidratrimo, a municipality in Ambohidratrimo (district), Analamanga Fiadanana, Ambohimahasoa, a municipality in Haute Matsiatra Fiadanana, Ankazobe, a municipality in Ankazobe (district), Analamanga Fiadanana, Fandriana, a municipality in Amoron'i Mania Fiadanana, Nosy Varika, a municipality in Vatovavy