| Mu'adzam Shah Malay: {{Script|Arab|معظم شاه | |
| Sultan of Kedah | |
| Reign: | 27 July 1179 – 10 May 1202 |
| Predecessor: | Mudzaffar Shah I |
| Successor: | Muhammad Shah |
| Issue: | Sultan Muhammad Shah Tunku Maheran Tunku Putri |
| House: | Kedah |
| Father: | Mudzaffar Shah I |
| Death Date: | 10 May 1202 |
| Death Place: | Kota Bukit Mariam |
| Religion: | Sunni Islam |
Paduka Sri Sultan Mu'adzam Shah ibni al-Marhum Sultan Mudzaffar Shah I (Jawi: ڤدوك سري سلطان معظم شاه ابن المرحوم سلطان مظفر شاه ١; died 10 May 1202; also spelt Sultan Mu'azzam Shah) was the second Sultan of Kedah. He reigned from 1179 to 1202.