| META | Medical Equipment and Technology Association | 医疗设备和技术协会 |
| META | Modena Energia Territorio Ambiente (Modena, Italy) | Modena Energia Territorio Ambiente（意大利摩德纳） |
| META | ModernizaciÓn del EjÉrcito de Tierra | ModernizaciÓn del EjÉrcito de Tierra |
| META | Mapping Education Towards Achievement | 将教育映射到成就 |
| META | Math English Tutoring Assistance | 数学英语辅导 |
| META | Metalec International, Inc. | Metalec国际公司。 |
| META | Metaheuristics and Nature Inspired Computing (workshop) | 元启发式与自然启发计算（研讨会） |
| META | Megachannel Extraterrestrial Assay | 巨通道地外测定 |
| META | Millimeter Emission Temperature of the Atmosphere | 大气毫米辐射温度 |
| META | Multicultural Education Training and Advocacy | 多元文化教育培训和宣传 |