| Al-Mundhir I | |
| Ruler of the Taifa of Zaragoza | |
| Reign: | 1018–1022 |
| Full Name: | Al-Mundhir ibn Yahya al-Tujibi |
| Predecessor: | Caliphate of Córdoba |
| Successor: | Yahya ibn al-Mundhir |
| Royal House: | Banu Tujib |
| Death Date: | 1022 |
Al-Mundhir I ibn Yahya al-Tujibi (Arabic: المنذر بن يحيى التجيبي) or Mundhir I was the first head of the Banu Tujib to rule the city of Zaragoza independent of control by the Caliphate of Córdoba, founding the Taifa of Zaragoza. He ruled from 1018 to 1022.