| Official Name: | Nittambuwa |
| Native Name: | නිිට්ටඹුව நிட்டம்புவ |
| Settlement Type: | Town |
| Pushpin Map: | Sri Lanka |
| Subdivision Type: | Country |
| Subdivision Name: | Sri Lanka |
| Subdivision Type2: | Province |
| Subdivision Name2: | Western Province |
| Subdivision Type3: | District |
| Subdivision Name3: | Gampaha District |
| Unit Pref: | Metric |
| Timezone: | Sri Lanka Standard Time Zone |
| Utc Offset: | +5:30 |
| Coordinates: | 7.15°N 80.1°W |
| Postal Code: | 11880 |
| Area Code: | 033 |
| Website: | www.nittambuwa.net |
Nittambuwa is a semi urban town, situated in Gampaha District, Sri Lanka. The town is situated on the Colombo-Kandy highway. It is connected also to Negombo with the highway via Veyangoda-Minuwangoda. It was the home town of the world's first female prime minister Sirimawo Bandaranayake.