| Official Name: | Martinsburg, Indiana |
| Mapsize: | 120px |
| Pushpin Map: | USA Indiana Washington County |
| Pushpin Label: | Martinsburg |
| Pushpin Map Caption: | Location in Washington County |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Washington |
| Subdivision Type3: | Township |
| Subdivision Name3: | Jackson |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Coordinates: | 38.4439°N -86.0261°W |
| Elevation Ft: | 820 |
| Postal Code Type: | ZIP code |
| Postal Code: | 47165 |
| Area Code: | 812, 930 |
| Blank Name: | FIPS code |
| Blank Info: | 18-47430[1] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 438682 |
Martinsburg is an unincorporated community in Jackson Township, Washington County, in the U.S. state of Indiana.
Martinsburg was founded in 1818 by Dr. Abner Martin, and named for him.[2]
A post office was established at Martinsburg in 1830, and remained in operation until it was discontinued in 1919.[3]
Martinsburg is located at 38.4439°N -86.0261°W.