LDF may refer to: Leaders For Democracy Fellows Program NAACP Legal Defense and Educational Fund Lesotho Defence Force Liberian Development Foundation Liechtenstein disclosure facility Lietuvos Darbo Federacija, the Lithuanian Labour Federation Liga Dominicana de Fútbol Local Defence Force, former Irish Army Reserve Log Database File extension, for Microsoft SQL Server Low-density fibreboard or particle board London dispersion force, type of intermolecular force Loss development factor in insurance pricing Politics Left Democratic Front, Kerala Left Democratic Front (Maharashtra), India