| Albert I the Tall | |
|---|---|
| Duke of Brunswick-Lüneburg | |
| Prince of Brunswick-Wolfenbüttel | |
| Reign | 1269 – 15 August 1279 |
| Born | 1236 |
| Died | 15 August 1279 |
| Burial | |
| Spouse | Elizabeth of Brabant Adelheid of Montferrat |
| Issue | Henry I Albert II William I Matilda Luther |
| House | House of Welf |
| Father | Otto I, Duke of Brunswick-Lüneburg |
| Mother | Matilda of Brandenburg |
Albert the Tall (Latin: Albertus Longus, German: Albrecht der Große; 1236 – 15 August 1279), a member of the House of Welf, was Duke of Brunswick-Lüneburg from 1252 and the first ruler of the newly created Principality of Brunswick-Wolfenbüttel from 1269 until his death.