​Abu al-Hasan Ali al-Wahidi al-Naysaburi (c. 1003–1076 CE) was a prominent Islamic scholar from Nishapur, renowned for his contributions to Qur'anic exegesis and Arabic philology. A follower of the Shafi'i school of thought, he studied under esteemed scholars such as Abu Ishaq al-Tha'labi and Ahmad ibn Muhammad al-Arudi. Al-Wahidi's expertise spanned lexicography, grammar, literature, and hadith.