 | This article needs additional citations for verification. (June 2016) |
| Radu I | |
|---|---|
| Voivode of Wallachia | |
 | |
| Voivode of Wallachia | |
| Reign | c. 1377 – c. 1383 |
| Predecessor | Vladislav I of Wallachia |
| Successor | Dan I of Wallachia |
| Spouse | Doamna Ana Doamna Calinichia |
| Issue | Dan I of Wallachia Mircea I of Wallachia Jupan Staico |
| House | Basarab |
| Father | Nicolae Alexandru of Wallachia |
| Mother | Doamna Clara Dobokai? |
Radu I (died 1383) was a Voivode of Wallachia (c. 1377 – c. 1383). His year of birth is unattested in primary sources. He was the son of Nicolae Alexandru and half-brother and successor to Vladislav I. He is identified by many historians as the legendary Radu Negru, a mythical voievode of the early medieval state Wallachia, founder of the state's institutions and ruler.