MSA (消歧义)

**MSA**可能指：

## 組織或企業

*馬來西亞-新加坡航空：新加坡航空及馬來西亞航空的前身。
*交通運輸部海事局（China Maritime Safety Administration）
*海上保安廳（舊稱Maritime Safety Agency，今稱Japan Coast Guard）
*, aka the Pakistan Coast Guard
*Masonic Service Association, a Freemasonry publishing resource
*, a society for the promotion of microscopy
*, a manufacturer of industrial safety clothing and equipment
*, an organization for the advancement of mineralogy
*Motion Sensing Alliance, an alliance for the development of motion sensing technology
*, the governing body for motorsport in the United Kingdom
*Mutual Security Agency, established by the US  (1951), and distributed aid to Europe after the Marshall Plan
*, a society promoting the study of fungi

## 教育

### 學位
* Master of Accountancy, an accounting degree
* , a degree providing preparation for administrative positions

### 學校
* , an architecture school in Glasgow, Scotland
* , an architecture school in Manchester, England
* Maryland School of the Arts, a fictional dance school in the film ''Step Up''
* , an evaluation and accreditation association 
* , a school in Minnesota
* , a high school in Brookhaven, Mississippi
* , a summer program at the University of Missouri
* , a culinary arts institute in Istanbul, Turkey
* , a university in October City, Egypt
* , the student government association of Monash University, Melbourne, Australia
* , a group dedicated to Islamic societies on college campuses in Canada and the United States

## 科學及醫學
* 5-甲氧基水杨酸（5-Methoxysalicylic acid）：一种化合物，在MALDI质谱中用作基质。
* 甘露醇鹽瓊脂（Mannitol salt agar）：一種微生物培養基。
* , the analysis of the process of obtaining measurements
* 甲基磺酸（Methanesulfonic acid）
* , a period of African prehistory
* 多重序列比對（Multiple sequence alignment）是對三個以上的生物學序列，如蛋白質序列、DNA序列或RNA序列所作的序列比對。
* , a degenerative neurological disorder
* Multiscale approximation 或多解析度分析（multiresolution analysis）
*  (linguistics)
* , a quality criterion for a correlation matrix as prequisition for factor analysis (statistics)

## 科技
* , the primary storage device for some data centres
* , a computer program used when sending email
* , a master agreement defining services to be delivered
* Microsoft Access：一種資料庫管理系統
* , a combination of Java ME extensions
* MSA，MIPS SIMD 架构 
* , an agreement between multiple manufacturers to make products which are compatible across vendors

## 運輸
* MSA , a steam engine class of the Western Australian Government Railways
* 公路服務區（Motorway service area）
* , an airport at Muskrat Dam, Ontario, Canada (IATA code)

## 其他
* 馬來語（Malay language）
*, a licensing contract between local authorities in the United Kingdom and suppliers of geographic data 
* , 2009 United States federal hate-crime legislation
*, an indoor arena in Indianapolis, Indiana demolished in 2001
*, a tax-deferred deposit account for medical expenses
*都会统计区, a geographical area associated with an urban area of 50,000 people or more, as defined by the United States Office of Management and Budget
*, a geographical area associated with an urban area of 10,000 to 49,999 people, as defined by the United States Office of Management and Budget
*, used for safely navigating aircraft over terrain or large structures
*現代標準阿拉伯語（Modern Standard Arabic）
*, an agreement reached between U.S. States and major tobacco companies
*MSA *Kyotei*, a Japanese abbreviation in reference to .
* Minesweeper Auxiliary