| LDF | Legal Defense Fund | 法定防务基金 |
| LDF | Geoworks Library Definition File | Geoworks库定义文件 |
| LDF | Little Dixie Flies | 小迪克西苍蝇 |
| LDF | Lyme Disease Foundation | 莱姆病基金会 |
| LDF | Latin American Discovery Fund, Inc. | 拉丁美洲发现基金公司。 |
| LDF | Local Depth First | 局部深度优先 |
| LDF | Log Database File | 日志数据库文件 |
| LDF | limit dilution factor | 极限稀释因子 |
| LDF | lymphocyte differentiating factor | 淋巴细胞分化因子 |
| LDF | lateral duodenal fistula | 十二指肠外侧瘘 |
| LDF | IBM Works for OS/2 Data Filer Form | 国际商用机器公司(IBM)为OS / 2数据过滤率的形式 |
| LDF | Lightweight Digital Facsimile | 轻量级数字传真 |
| LDF | Local Density Function (solid-state physics) | 局部密度函数（固态物理学） |
| LDF | Low Density Fiberboard | 低密度纤维板 |
| LDF | Local Distribution Frame | 本地配线架 |
| LDF | LuraDocument Format (file extension) | LuraDocument格式（文件扩展名） |
| LDF | Learning Development Framework | 学习发展框架 |
| LDF | London Dispersion Forces (intermolecular bonding strength) | 伦敦分散力（分子间结合强度） |
| LDF | Laser Demonstration Facility | 激光演示设施 |
| LDF | Logical Data File | 逻辑数据文件 |
| LDF | Lambda Delta Fraternity | Lambda Delta兄弟会 |
| LDF | Local Distribution Facility | 本地配送设施 |
| LDF | Liberian Development Foundation Inc (Greenbelt, MD) | 利比里亚发展基金会（Greenbelt，MD） |
| LDF | Loss Development Factor (insurance) | 损失发展系数（保险） |
| LDF | Laboratory Director's Funds | 实验室主任的基金 |
| LDF | Left Democratic Front (India) | 左翼民主阵线（印度） |
| LDF | Local Development Framework | 地方发展框架 |
| LDF | Land Disposal Facility | 土地处置设施 |
| LDF | Low Density Factor | 低密度系数 |
| LDF | Lyme Disease Foundation, Inc. | 莱姆病基金会。 |