| PLA | People's Liberation Army | 中国人民解放军 |
| PLA | Product license application | 产品许可申请 |
| PLA | Left Atrial Pressure | 左心房压 |
| PLA | Public Library Association | 公共图书馆协会 |
| PLA | Professional Loadmaster Association | 专业装载师协会 |
| PLA | Provincial Liberal Association (Ontario, Canada) | 省自由协会（加拿大安大略省） |
| PLA | Pakistan Library Association | 巴基斯坦图书馆协会 |
| PLA | Pennsylvania Library Association | 宾夕法尼亚州图书馆协会 |
| PLA | Pensacola Lighthouse Association (Florida, USA) | 彭萨科拉灯塔协会（美国佛罗里达州） |
| PLA | Paola (postal locality, Malta) | Paola（邮政地址，马耳他） |
| PLA | Pool Leagues of America | 美国游泳池联盟 |
| PLA | Plucked from the Air (budgeting method) | 空中跳伞（预算方法） |
| PLA | People's Liberation Army | 中国人民解放军 |
| PLA | Professional Labor Assistant | 专业劳工助理 |
| PLA | Patent License Agreement | 专利许可协议 |
| PLA | Programmable Logic Array | 可编程逻辑阵列 |
| PLA | Prior Learning Assessment | 先前学习评估 |
| PLA | Participatory Learning and Action | 参与式学习和行动 |
| PLA | Purchased Life Annuity | 购买的人寿年金 |
| PLA | Pathology Laboratory Associates, Inc (Tulsa, OK) | 病理实验室联合公司（俄勒冈州塔尔萨） |
| PLA | Petroleum Licensing Authority (UK) | 石油许可证管理局（英国） |
| PLA | Plasminogen Activator | 纤溶酶原激活剂 |
| PLA | Port of London Authority | 伦敦港管理局 |
| PLA | Procurement Liaison Auditor (Defense Contract Audit Agency) | 采购联络审计员（国防合同审计署） |
| PLA | Performance Level Assessment | 绩效水平评估 |
| PLA | Public Land Acquisition | 公共土地征用 |
| PLA | posterior lip of acetabulum | 髋臼后唇 |
| PLA | Playboy Enterprises, Inc. | 花花公子企业公司。 |
| PLA | polymer of lactic acid | 乳酸聚合物 |
| PLA | Project Labor Agreement | 项目劳动协议 |
| PLA | platelet antigen | 血小板抗原 |
| PLA | Polymerized Lactic Acid | 聚合乳酸 |
| PLA | procaine and lactic acid | 普鲁卡因和乳酸 |
| PLA | Place Listing As | 将列表放置为 |
| PLA | PowerLine Audio | PowerLine音频 |
| PLA | pulpolinguoaxial | 牙髓轴 |
| PLA | posterior wall,left atrium | 左心房后壁 |
| PLA | phospholipase a | 磷脂酶a |
| PLA | Patent Licensing Agreement | 专利许可协议 |
| PLA | Politics Law And Autism | 政治、法律与自闭症 |
| PLA | Polystyrene Latex Aerosol | 聚苯乙烯乳胶气雾剂 |
| PLA | Pull Accumulator from Stack (6502 processor instruction) | 从堆栈中拉出累加器（6502处理器指令） |
| PLA | Pylon Loading Adapter | 塔式装载适配器 |
| PLA | Pre-school Learning Alliance (London, UK) | 学前学习联盟（英国伦敦） |
| PLA | Please Leave Alone | 请单独离开 |
| PLA | Planned Labor Application | 计划劳动力申请 |
| PLA | Practice Low Approach (FAA) | 实践低进近（FAA） |
| PLA | Partido Liberal Andaluz | 安达卢兹自由党 |
| PLA | Personal Loan Agreement | 个人贷款协议 |
| PLA | Pacific Legal Advisory (Bangkok & Thailand law firm) | 法律顾问(曼谷亚太及泰国律师事务所) |
| PLA | Payday Loan Act | 发薪日贷款法 |
| PLA | Project Labor Agreements | 项目劳动协议 |
| PLA | Portland Leather Alliance | 波特兰皮革联盟 |
| PLA | Proactive Logistics Assessment | 主动物流评估 |
| PLA | Probabilistic Luck Assessment | 概率运气评估 |
| PLA | People's Liberation Army (China) | 人民解放军(中国) |
| PLA | Power Level Actuator | 功率电平执行器 |
| PLA | PhpLdapAdmin (PHP tool for LDAP Server Administration) | PhpLdapAdmin（用于LDAP服务器管理的PHP工具） |
| PLA | Principal's Leadership Award | 校长领导奖 |
| PLA | Parachute Landing Area | 降落伞着陆区 |
| PLA | Product License Application (FDA) | 产品许可证申请（FDA） |
| PLA | Partial Look-Ahead | 部分展望 |
| PLA | Participatory Learning Appraisal | 参与式学习评估 |
| PLA | Polylactic Acid | 聚乳酸 |
| PLA | Pierce Leahy Archives | 皮尔斯·莱希档案馆 |
| PLA | Pelvic Lymphadenectomy | 盆腔淋巴腺切除术 |
| PLA | Planar Loop Antenna (wideband antenna) | 平面环形天线（宽带天线） |
| PLA | Plain Language Address | 纯语言地址 |
| PLA | American Plaice (Hippoglossoides platessoides) | 美国平原（Hippoglossoides platesoides） |
| PLA | Power Level Angle | 功率电平角 |
| PLA | Palestine Liberation Army | 巴勒斯坦解放军 |
| PLA | Power Lever Angle Actuator | 动力杆角度执行器 |
| PLA | Phone Losers of America | 美国手机丢失者 |
| PLA | Pure Love Alliance | 纯爱联盟 |
| PLA | Permanent Loan Agreement | 永久贷款协议 |