| al-Mustaʿin I | |
| Ruler of Zaragoza | |
| Reign: | 1039–1046/1049 |
| Full Name: | al-Mustaʿin bi-Illah Sulayman ibn Muhammad ibn Hud al-Judhami |
| Predecessor: | Abd Allah ibn al-Hakam al-Tujibi |
| Successor: | Ahmad al-Muqtadir |
| Royal House: | Banu Hud |
| Death Date: | 1046 or 1049 |
Sulayman ibn Muhammad ibn Hud al-Judhami (Arabic: سليمان بن محمد بن هود الجذامي), known by the regnal name al-Mustaʿin bi-Illah (Arabic: المستعين بالله||He who looks for help to God), was the first member of the Banu Hud family to rule the medieval taifa of Zaragoza, today a province in Spain. He ruled from 1039 (when he seized control of the city from the Banu Tujib) to 1046.[1]