| LOA | Letter of Agreement | 协议书 |
| LOA | Length Over All | 全长 |
| LOA | Letter of Authorization | 委任狀 |
| LOA | left occipito anterior | 枕左前 |
| LOA | Low speed output Adapter | 低速输出适配器 |
| LOA | Loss Of Alignment | 帧失步 |
| LOA | Logistics Officers Association (formerly Maintenance Officers Association) | 后勤人员协会（原维修人员协会） |
| LOA | Loyal Orange Association (Canadian fraternal organization) | 忠诚橙色协会（加拿大兄弟组织） |
| LOA | Looseness of Association | 协会松散 |
| LOA | Logistics Operations Analysis (McHugh Software International) | 物流运营分析（McHugh Software International） |
| LOA | Law of Averages | 平均数定律 |
| LOA | Light Off Assessment | 启动评估 |
| LOA | Letter of Agency | 委托书 |
| LOA | Letter of Administration | 行政管理书 |
| LOA | Line of Affiliation | 隶属关系行 |
| LOA | Legion Of Apocalypse (hacker group) | 天启军团（黑客团体） |
| LOA | Limit of Authority | 权限限制 |
| LOA | Limited Open Authorization | 有限开放授权 |
| LOA | Length Overall (boat specification) | 总长度（船规格） |
| LOA | Leave Of Absence | 请假 |
| LOA | Link Occupancy Analysis | 链路占用分析 |
| LOA | League of Awesomeness | 恐怖联盟 |
| LOA | Legends of Aranna (game) | 阿拉纳传奇（游戏） |
| LOA | Lack of Attention | 缺乏关注 |
| LOA | List of Abbreviations | 缩写词表 |
| LOA | Left Occipito Anterior (fetal position) | 左枕前（胎儿位置） |
| LOA | Living Out Allowance (housing) | 外出生活津贴（住房） |
| LOA | Lead Out Advantage | 领先优势 |
| LOA | Lambs of Abortion (band) | 流产羔羊（带） |
| LOA | Legacy of Assassins (PS3 clan) | 刺客的遗产（PS3氏族） |
| LOA | Logistics Operations Area | 物流作业区 |
| LOA | Limit of Allowance | 津贴限额 |
| LOA | Lead Operational Authority | 首席运营主管 |
| LOA | Losers of America (gaming clan) | 美国的失败者（游戏家族） |
| LOA | letter of offer and acceptance (US DoD) | 要约和承诺书（美国国防部） |
| LOA | Limited Operational Availability | 有限的运营可用性 |
| LOA | Lords of Acid (band) | 酸之王（乐队） |
| LOA | Lysis of Adhesions (surgical procedure) | 粘连溶解（外科手术） |
| LOA | Leaf Over Axle (Motor Vehicle Suspension Design) | 叶桥（机动车辆悬架设计） |
| LOA | logistics over-the-shore (LOTS) operation area (US DoD) | 岸上后勤（LOTS）作业区（美国国防部） |
| LOA | Love of Animals, Inc (Visalia, CA) | 动物之爱公司（加利福尼亚州维塞利亚） |
| LOA | lodgment operational area (US DoD) | 驻场作战区（美国国防部） |
| LOA | Light Observation Aircraft | 光观测飞机 |
| LOA | Length OverAll | 全部长度 |
| LOA | Left Occipitoanterior | 左枕内侧 |
| LOA | leber's optic atrophy | 利伯氏视神经萎缩 |
| LOA | Location Avec Option D'achat | 选择'achat D ' etancheite位置 |
| LOA | Letter Of Arrival | 到货通知书 |
| LOA | Legion Of The Apocalypse | 启示录军团 |
| LOA | Lights Of America | 美国之光 |
| LOA | Love on Arrival (Dan Seals song) | 抵达时的爱（丹·海豹之歌） |
| LOA | List Of Acronyms | 首字母缩略词列表 |
| LOA | Love of Anime | 动漫之恋 |
| LOA | Ley OrgÁnica de la Armada | Ley OrgÁnica de la Armada |
| LOA | Lost Order Of Akalabeth | Akalabeth订单丢失 |
| LOA | Look Of Adoration | 崇拜的样子 |
| LOA | League Of Angels | 天使联盟 |
| LOA | Level Of Activity | 活动级别 |
| LOA | Lorraine, Queensland, Australia | 澳大利亚昆士兰州洛林 |
| LOA | Little Orphan Annie | 小孤儿安妮 |
| LOA | Limited Operational Assessment | 有限运营评估 |
| LOA | Luck of Aleia (emo band) | Aleia的幸运（emo乐队） |
| LOA | Loss of Attachment (periodontal disease) | 附着丧失（牙周病） |
| LOA | Library of America | 美国图书馆 |
| LOA | Letter of Admonishment | 告诫书 |
| LOA | Line of Accounting | 会计科目 |
| LOA | Letter Of Appreciation | 感谢信 |
| LOA | List Of Acronym(s) | 缩写词列表 |
| LOA | Last of All | 最后一个 |
| LOA | Local Overseas Allowance | 当地海外津贴 |
| LOA | Lube Oil Additive | 润滑油添加剂 |
| LOA | Limit of Advance | 预付款限额 |
| LOA | Loss of Appetite | 丧失食欲 |
| LOA | Love One Another | 彼此相爱 |
| LOA | Letter of Abandonment | 放弃通知书 |
| LOA | Law of Attraction | 吸引力定律 |
| LOA | Letter Of Apology | 道歉信 |
| LOA | Level of Assessment | 评估级别 |
| LOA | Life Of Agony | 痛苦的生活 |
| LOA | Letters of Assurance | 保证书 |
| LOA | Legend of Ares (online game) | 战神传奇（网络游戏） |
| LOA | letter of assist (US DoD) | 协助通知书（美国国防部） |
| LOA | Lease-Option Agreement | 租赁期权协议 |
| LOA | Length of Association | 关联期限 |
| LOA | Library of Alexandria (game) | 亚历山大图书馆（游戏） |
| LOA | Line Of Appropriation | 拨款项目 |
| LOA | Linear Optical Amplifier (Genoa) | 线性光学放大器（热那亚） |
| LOA | Lords of Arograth (online game) | Arograth领主（在线游戏） |
| LOA | Loss of Aircraft (logistics) | 飞机损失（物流） |
| LOA | Letter of Approval | 批准函 |
| LOA | Letter Of Agreement/Acceptance | 信的协议/承兑 |
| LOA | Lands of Acheron (Neverwinter Nights game server) | 阿克伦之地（无冬之夜游戏服务器） |
| LOA | Lesbians Of America | 美国女同性恋者 |
| LOA | Leadership Opportunity Awards | 领导力机会奖 |
| LOA | Level Of Authority | 权限级别 |
| LOA | Leif Ove Andsnes (classical pianist) | Leif Ove Andsnes（古典钢琴家） |
| LOA | Loss of Alignment (SDH or Sonet Technology) | 失准（SDH或Sonet技术） |
| LOA | Lower Open Auxiliary | 下部打开辅助 |
| LOA | Late Onset Asthma | 迟发性哮喘 |