FNMA is the Federal National Mortgage Association, also called Fannie Mae.
FNMA may also refer to:
Malanje Airport, by ICAO code
Fundo Nacional do Meio Ambiente (National Environmental Fund); see List of federal institutions of Brazil
Fédération nationale de la mutualité agricole (National Federation of Agricultural Reciprocity); see Confédération Nationale de la Mutualité, de la Coopération et du Crédit Agricoles