Ali ibn Muhammad ibn Ja'far ibn Ibrahim ibn Abi Salama ibn al-Walid al-Abshami al-Qurashi (Arabic: علي بن محمد بن الوليد القرشي; c. 1128 – 21 December 1215) was the 5th Tayyibi Isma'ili Dāʿī al-Muṭlaq in Yemen from 1209 to his death in 1215. Descended from a noble lineage of the Quraysh, he was a noted scholar and Tayyibi theologian, and an author of several influential works on Tayyibi doctrine. Before becoming himself Dāʿī al-Muṭlaq, he served as senior deputy to the third and fourth Dāʿī al-Muṭlaqs. His rise to the office inaugurated a period of two and a half centuries where it would be monopolized, with few exceptions, by members of his own family.