# EMS

Ems or EMS may refer to:

## Places and rivers

* Domat/Ems, a Swiss municipality in the canton of Grisons
* Ems (river) (Eems), a river in northwestern Germany and northeastern Netherlands that discharges in the Dollart Bay
* Ems (Eder), a river of Hesse, Germany, a tributary of the Eder
* River Ems (Chichester Harbour), an English river with its mouth at Emsworth, Hampshire
* Bad Ems, a German town in Rhineland-Palatinate, until 1913 named Ems

## Businesses

* Eastern Mountain Sports, an outdoor retailer
* Eitzen Maritime Services, a Norwegian company
* Electronic Music Studios, a manufacturer of synthesizers
* Elektromreža Srbije, a Serbian electric utility company
* Event Marketing Solutions, a UK-based provider of vehicle-based marketing roadshows
* Ems-Chemie, Swiss chemical company
* EMS (pharmaceuticals), a Brazilian pharmaceutical company
* EMS Recordings, a 1949–1952 American experimental-music record label
* EMS Technologies, an American company

## Organizations

* Edinburgh Mathematical Society
* Environmental Media Services, an American nonprofit organization
* Estonian Mathematical Society
* European Monetary System, a former European monetary cooperation
* European Mathematical Society

## Schools
### United States

* Eagleview Middle School, El Paso County, Colorado
* Eastern Middle School, Montgomery County, Maryland
* Elwood Middle School, New York
* Penn State College of Earth and Mineral Sciences (commonly referred to as EMS), part of Penn State University, University Park, Pennsylvania
* Eastern Mennonite School, Harrisonburg, Virginia
* Eastern Mennonite Seminary, Harrisonburg, Virginia

### Elsewhere

* Earl Marriott Secondary School, Surrey, British Columbia, Canada
* English Martyrs School and Sixth Form College, Hartlepool, County Durham, England
* Exeter Mathematics School, Exeter, Devon, England
* EM Strasbourg Business School, Strasbourg, France

## Science and technology
### Physics, chemistry, and biology

* Electromagnetic suspension, a method to suspend an object
* Electromagnetic spectrum, is the range of all possible electromagnetic radiation
* Ethyl methanesulfonate (or methanesulfonic acid ethyl ester), a mutagen
* European macroseismic scale, a scale used when measuring earthquakes intensity
* Environmental Mutagen Society

### Computer and engineering

* Electronics manufacturing services, a type of company
* Electronic meeting system, a collaborative computer software
* Element management system, software to monitor and control network elements (devices) in telecommunications
* Emergency Management Services, a part of MS-Windows
* Energy management software, software to monitor and optimize energy consumption in buildings or communities
* Energy management system, a system to control, monitor, and optimize the generation and flow of Electric Power
* Engine management system, see engine control unit
* Enhanced Messaging Service, an extension to Short Message Service (SMS) for mobile phone
* Expanded Memory Specification, a memory specification for x86 PCs supported by DOS etc.
* Enterprise messaging system, a middleware system for sending messages between two or more clients
* Execution management system, a trading system with a user interface for market data, indicators and order entry

### Medical and veterinary

* Emergency medical services, a service providing out-of-hospital acute care and transport
* Emergency Hospital Service, also known as the Emergency Medical Service, which provided centralised state-run medical care in World War II Britain
* Eosinophilia–myalgia syndrome, a neurological condition
* Electrical muscle stimulation, a type of medical therapy, also referred to as Electro Myo-Stimulation, a technique used in sports training and rehabilitation
* Equine metabolic syndrome, a horse disease

### Other science and technology

* Earthen manure storage, structures for the storage of liquid livestock manure
* Environmental management system, part of a management system of an organization similar to a quality management system
* Engine monitoring system, data logging, display and alerting device, a simpler form of an aircraft engine-indicating and crew-alerting system
* Expected mean squares, in statistics

## Other uses

* Ems (ship), an 1893 British iron sailing ship
* Express Mail Service, an international express postal service offered by members of the Universal Postal Union
* Experimental Music Studios, computer music center at the University of Illinois
* E. M. S. Namboodiripad (1909–1998), Indian communist leader
* A US Navy hull classification symbol: Expeditionary medical ship (EMS)