| WDDD-FM | |
| City: | Johnston City, Illinois |
| Country: | US |
| Area: | Southern Illinois |
| Branding: | W3D |
| Frequency: | 107.3 MHz |
| Airdate: | November 22, 1970 |
| Format: | Country music |
| Erp: | 50,000 watts |
| Haat: | 150m (490feet) |
| Class: | B |
| Facility Id: | 123 |
| Licensing Authority: | FCC |
| Coordinates: | 37.754°N -88.935°W |
| Owner: | Withers Broadcasting |
| Licensee: | Withers Broadcasting of Southern Illinois, LLC |
| Sister Stations: | WFRX, WHET, WMIX, WMIX-FM, WTAO-FM, WVZA |
| Website: | w3dcountry.com |
WDDD-FM (107.3 FM) is an American country music formatted radio station licensed to Johnston City, Illinois.
W3D has been a country station for 30+ years. On November 22, 1970, WDDD-FM first signed on. WDDD used to simulcast on 810 AM, which is no longer on the air.
Its sister stations are WFRX, WHET, WMIX, WMIX-FM, WTAO-FM, and WVZA.