Bahāʾ al-Dīn Abū ʿAbdallāh Muḥammad b. Ibrāhīm b. Muḥammad b. Abī Naṣr Ibn al-Naḥḥās al-Ḥalabī (d. 698/1299) was an Arab grammarian. He was born at the end of Jumādā II 637/1240 in Aleppo, where he grew up, became a student of philology under Muwaffaq al-Dīn Ibn Yaʿīsh (d. 643/1245), Jamāl al-Dīn Ibn Mālik (d. 672/1274), ʿAbdallāh b. ʿUmar Ibn al-Lattī (d. 635/1237), Abū l-Qāsim ʿAbdallāh b. al-Ḥusayn Ibn Rawāḥa al-Anṣārī (d. 646/1248), Shams al-Dīn