| Official Name: | Mattson, Mississippi |
| Pushpin Map: | Mississippi#USA |
| Pushpin Label: | Mattson |
| Pushpin Label Position: | bottom |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Mississippi |
| Subdivision Type2: | County |
| Subdivision Name2: | Coahoma |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation M: | 50 |
| Elevation Ft: | 164 |
| Coordinates: | 34.0978°N -90.51°W |
| Area Code: | 662 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 673246 |
Mattson, also known as Earnest, is an unincorporated community located near U.S. Route 49 in Coahoma County, Mississippi, United States.
Mattson is 8miles south of Clarksdale and 2miles north of Dublin.
Mattson is named after a local family that owned a large sawmill in the area.[1] Mattson is located at a junction of the former Yazoo and Mississippi Valley Railroad.[2] A post office operated under the name Earnest from 1887 to 1897 and first began operation under the name Mattson in 1897.[3] A drug store operated by T. R. Montgomery formerly operated in Mattson.[4]