| Ala al-Dawla Muhammad | |
|---|---|
| Amir | |
 | |
| Ruler of the Kakuyid dynasty | |
| Reign | 1008 – September 1041 |
| Successor | Faramurz (Isfahan) Garshasp I (Hamadan) |
| Died | September 1041 Jibal |
| House | Kakuyid |
| Father | Rustam Dushmanziyar |
| Religion | Shia Islam |
Muhammad ibn Rustam Dushmanziyar (Persian: ابوجعفر دشمنزیار), also known by his laqab of Ala al-Dawla Muhammad (علاء الدوله محمد), was a Daylamite military commander who founded in 1008 the short-lived but important independent Kakuyid dynasty in Jibal. He is also known as Pusar-i Kaku, Ibn Kakuyeh, Ibn Kakuya, and Ibn Kaku, which means maternal uncle in the Deylami language, and is related to the Persian word "kaka". Muhammad died in September 1041 after having carved out a powerful kingdom which included western Persia and Jibal. However, these gains were quickly lost under his successors.