LDF

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
 * LuraDocument Format, a LuraTech proprietary document format
 * Legado Del Fantasma, a professional wrestling group

Politics

 * Left Democratic Front, Kerala
 * Left Democratic Front (Maharashtra), India