- Raja Dahir Sen (663 - 712 CE) was the last Hindu ruler of Sindh in the western region of the Indian subcontinent that now comes in modern Pakistan after partition of India in 1947.
- In 711 CE his kingdom was invaded by the Ummayad Caliphate led by Muhammad bin Qasim where Dahir died while defending his kingdom.
- According to the Chachnama, the Umayyad campaign against Arori Raja Dahir was due to a pirate raid off the coast of the Sindhi coast that resulted in gifts to the Ummayad caliph from the king of Serendib being stolen.
- He was killed at the Battle of Aror which took place between his dynasty and the Arabs at the banks of the Indus River, near modern-day Nawabshah at the hands of the Arab general Muhammad bin Qasim.
- His body was then decapitated and his head was sent to the governor of Basra, Al-Hajjaj ibn Yusuf.
- His headless body was then cremated by his own soldiers.