Eastern Mountain Sports
| Company type | Subsidiary | 
|---|---|
| Industry | Retail | 
| Founded | 1967 in Wellesley, Massachusetts | 
| Founder | Alan McDonough Roger Furst  | 
| Headquarters | , | 
Number of locations  | 7 (August 2024) | 
Area served  | United States | 
| Products | Outdoor gear and clothing | 
| Parent | Frasers Group (2017–2022) GoDigital Media Group (2022–2024) Mountain Warehouse (2024–present)  | 
| Website | ems.com | 
Eastern Mountain Sports (or EMS) is an American outdoor clothing and equipment retailer in the Northeastern United States headquartered in Meriden, Connecticut.
EMS sells outdoor equipment and clothing from both name brands and its own EMS line. The company also had a set of EMS Schools that offer classes in rock and ice climbing, kayaking, stand-up paddle boarding, trekking, and skiing. The EMS Schools headquarters was located in the White Mountains in North Conway, New Hampshire, and has other locations near the Adirondacks in New York, etc.