| Official Name: | Kopiah, Washington |
| Pushpin Map: | Washington#USA |
| Pushpin Label: | Kopiah |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Washington |
| Subdivision Type2: | County |
| Subdivision Name2: | Lewis |
| Established Title: | Established |
| Established Date: | 1906 |
| Population As Of: | 1930 |
| Population Total: | 115 |
| Timezone: | Pacific (PST) |
| Utc Offset: | -8 |
| Timezone Dst: | PDT |
| Utc Offset Dst: | -7 |
| Coordinates: | 46.7058°N -122.8078°W |
| Postal Code Type: | ZIP code |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
Kopiah was a town in Lewis County, Washington located 8 miles southeast of Centralia. The 1910 census showed 298 individuals, but the 1930 census showed only 115.
A post office operated from 1906 to 1928.