| HTA | HyperText Application | 超文本应用程序 |
| HTA | High Temperature Adhesive | （耐）高温粘结剂 |
| HTA | Hindustan Thompson Associates | 印度斯坦汤普森协会 |
| HTA | Home Town Association | 家乡协会 |
| HTA | Home Town Associations | 家乡协会 |
| HTA | Hoof Trimmers Association, Inc. | 蹄修剪协会。 |
| HTA | Hawaii Transportation Association | 夏威夷运输协会 |
| HTA | History Teachers' Association | 历史教师协会 |
| HTA | Hunter and Trappers Association | 猎人和陷阱协会 |
| HTA | hypophysiotropic area(of hypothalamus) | （下丘脑的）促垂体区 |
| HTA | Hysteroscopic Thermal Ablation (gynecology) | 宫腔镜热消融（妇科） |
| HTA | human thymocyte antigen | 人胸腺细胞抗原 |
| HTA | High Threat Area | 高威胁区域 |
| HTA | Held to Answer (law) | 等待回答（法律） |
| HTA | Hostile Terrorist Activity | 敌对恐怖活动 |
| HTA | Hell To Abolish | 地狱要废除 |
| HTA | Humbolt Transit Authority (Eureka, CA, USA) | Humbolt交通管理局（美国加利福尼亚州尤里卡） |
| HTA | Hohenfels Training Area | 霍恩费尔斯训练区 |
| HTA | Help the Aged | 帮助老年人 |
| HTA | Highway Traffic Act (Ontario, Canada) | 《公路交通法》（加拿大安大略省） |
| HTA | Chita, Russia | 俄罗斯赤塔 |
| HTA | heterophil transplantation antigen | 异种移植抗原 |
| HTA | hemocyotropic antibody | 促血细胞抗体 |
| HTA | Hydraulic Tube Assembly | 液压管组件 |
| HTA | Hardware Tree-based Routing Algorithm | 基于硬件树的路由算法 |
| HTA | Chita (Russia) | 奇塔（俄罗斯） |
| HTA | Health Technology Assessment | 健康技术评估 |
| HTA | HTML Application | HTML应用程序 |
| HTA | Hawaii Tourism Authority | 夏威夷旅游局 |
| HTA | Heavier Than Air | 比空气重 |
| HTA | High Temperature Accelerant | 高温加速剂 |
| HTA | Helicopter Type Allowance | 直升机类型津贴 |
| HTA | Hochschule fÜr Technik und Architektur | Hochschule fÜr Technik und Architektur |
| HTA | Human Tissue Authority (UK) | 人类组织管理局（英国） |
| HTA | Hipertension Arterial (Spanish: Hypertension) | Hipertension Arterial（西班牙语：高血压） |
| HTA | High Temperature Alarm | 高温报警 |
| HTA | Host-Tenant Agreement | 主租户协议 |
| HTA | Hierarchical Task Analysis (software design) | 分层任务分析（软件设计） |