Messaâd
| Messad | |
|---|---|
| Commune and town | |
| Coordinates: 34°10′0″N 3°30′0″E / 34.16667°N 3.50000°E | |
| Country | Algeria | 
| Province | Djelfa Province | 
| Population  (2008 Census) | |
|  • Total | 97,091 | 
| Time zone | UTC+1 (West Africa Time) | 
Messad (sometimes Messaad; Arabic: مسعد) is a town in Algeria. It was the Roman Castellum Dimmidi.