Barnim I | |
|---|---|
 A later depiction of Barnim and his three wives | |
| Born | c. 1217/1219 |
| Died | 13 November 1278 Dąbie, Szczecin |
| Noble family | House of Griffin |
| Spouse(s) | Marianna Margareta Matilda of Brandenburg |
| Issue Detail | Bogislaw IV Barnim II Otto I |
| Father | Bogislaw II, Duke of Pomerania |
| Mother | Miroslava of Pomerelia |
Barnim I the Good (c. 1217/1219 – 13 November 1278), from the Griffin dynasty, was a Duke of Pomerania (ducis Slauorum et Cassubie) from 1220 until his death.