| Official Name: | Armstrong, Texas |
| Pushpin Map: | Texas#USA |
| Pushpin Label: | Armstrong |
| Subdivision Type: | Country |
| Subdivision Name: |  United States |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Kenedy |
| Timezone Dst: | CDT |
| Coordinates: | 26.9249°N -97.7902°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 78338[1] |
| Area Code: | 361 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1377953 |
Armstrong is an unincorporated community in central Kenedy County, Texas, United States. As of 2014, it consisted solely of a small rural post office, with no inhabitants; an extensive, gated ranch land abuts its lone building, which lies on U.S. Route 77, approximately twenty miles south of Sarita across the highway from the Missouri Pacific Railroad's tracks.