| OWA | Orphan Well Association | 弃井协会（加拿大） |
| OWA | Old Whitgiftian Association | 老惠特吉提协会 |
| OWA | Oregon Winegrowers' Association (Portland, OR) | 奥勒冈州波特兰的葡萄酒协会(或) |
| OWA | Old Wrekinian Association | 旧摔跤协会 |
| OWA | One Word Answer | 一个字的答案 |
| OWA | Out Walking Around | 外出走动 |
| OWA | Owatonna, Minnesota USA | 美国明尼苏达州奥瓦通纳 |
| OWA | Oratory Wrestling Alliance | 口头摔跤联盟 |
| OWA | Optimized Wideband Antenna (NW3Z) | 优化宽带天线（NW3Z） |
| OWA | Orange Winged Amazon (bird species) | 橙翅亚马逊（鸟类） |
| OWA | One-Winged Angel (Final Fantasy VII boss) | 单翼天使（最终幻想VII boss） |
| OWA | Outlook Web Access | Outlook Web Access |
| OWA | Opiate Withdrawal Assessment | 阿片类药物戒断评估 |
| OWA | Oracle Web Agent (Oracle database software) | Oracle Web Agent（Oracle数据库软件） |
| OWA | Organization of Women Architects and Design Professionals | 女建筑师和设计专业人员组织 |
| OWA | oncofetal Wilm's antigen | 癌胚维尔姆(氏)抗原 |
| OWA | Ordered Weighted Averaging | 有序加权平均 |
| OWA | Outpost Wilderness Adventure | 前哨荒野探险 |
| OWA | One Winged Angel (band) | 单翼天使（乐队） |
| OWA | Offshore Wind Accelerator | 海上风力加速器 |
| OWA | Owners With Aim | 有目标的所有者 |
| OWA | Occupational Work Adjustment | 职业工作调整 |
| OWA | Online Wrestling Alliance | 在线摔跤联盟 |
| OWA | Oracle Web Application | Oracle Web应用程序 |
| OWA | Oracle Web Applications | Oracle Web应用程序 |