| Official Name: | Sunnyside, Mississippi |
| Pushpin Map: | Mississippi#USA |
| Pushpin Label: | Sunnyside |
| Pushpin Label Position: | bottom |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Mississippi |
| Subdivision Type2: | County |
| Subdivision Name2: | Leflore |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 138 |
| Coordinates: | 33.6964°N -90.295°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 38944 |
| Area Code: | 662 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 678427 |
Sunnyside is an unincorporated community located in Leflore County, Mississippi. Sunnyside is approximately 5miles south of Minter City and approximately 8miles northwest of Schlater just off U.S. Highway 49E.
It is part of the Greenwood, Mississippi micropolitan area.
Sunnyside is located on the former Southern Railway and was once an important cotton shipping point. In 1900, the community had a population of 250.[1]
A post office operated under the name Sunnyside from 1882 to 1917.[2]