| Duffields, West Virginia | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | West Virginia#USA |
| Pushpin Label: | Duffields |
| Pushpin Label Position: | left |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | West Virginia |
| Subdivision Type2: | County |
| Subdivision Name2: | Jefferson |
| Unit Pref: | Imperial |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Coordinates: | 39.3625°N -77.8275°W |
| Postal Code Type: | ZIP codes |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1554333 |
Duffields is an unincorporated community in Jefferson County, West Virginia, United States. Duffields depot is the second oldest surviving B&O depot, named for the pre-Civil War landowner who constructed it (Richard Duffield), and has been on the National Register of Historic Places since 2007. No longer in railroad use, it is expected to become a museum. During the American Civil War, a Confederate infantry company (Company H of the 2nd Virginia Infantry) was recruited from the area. The depot became a strategic target, most famous for its capture by Confederate Capt. John S. Mosby on June 29, 1864, as well as a raid his Rangers made on a Union army pay train on October 14, 1864 (the "Greenback raid"). The modern community is served by the Duffields MARC Train station, located on the Brunswick Line. Services to Washington, D.C., and Martinsburg are provided on weekdays.