Abd al-Rauf ibn Ali al-Fansuri al-Sinkili was a well-known Islamic scholar, spiritual leader of the Shattariyya tariqa and the mufti of Aceh Sultanate. He was the confidant of Sultana Safiyat al-Din. He was considered the first person to spread the Shattari Sufi order in Indonesia and Southeast Asia. Many of his students also became disseminators of Islam. He is commonly known as Shaikh Abd al-Rauf al-Sinkili, and also known posthumously in Aceh as Teungku Syiah Kuala, which translates to "Sheikh in the Estuary".

The Shattari or Shattariyya are members of a Sufi order that originated in Safavid Iran in the fifteenth century and developed, completed, and codified in India. Later, secondary branches were taken to the Hejaz and to Indonesia. The word Shattar, which means "lightning-quick," "speed," "rapidity," or "fast-goer" shows a system of spiritual practices that lead to a state of "completion," but the name derives from its founder, Abdullah Shattar.