Rukn al-Din Muhammad II ibn Mahmud (1128–1159) was Sultan of Seljuq Empire from 1153 to 1159. He was son of Mahmud II and brother of Malik-Shah III. The Cambridge History of Iran notes that Sultan Muhammad "tried energetically to restore the slipping authority of his dynasty in Iraq".
- Position held
- shah, Sultan of the Seljuq Empire
- Citizenship
- Seljuk Empire
- Born
- 1128
- Died
- 1159