Hasan Ali Nukhudaki Isfahani (Persian: حسنعلی نخودکی اصفهانی) (4 May 1863 – 29 August 1942) was a Shi'a Muslim scholar and Sufi mystic who practiced asceticism.

When he grew up, Hasan Ali went to Shahreza, about 80 km southwest of Isfahan, to study under Sayyid Ja'far Husayni Qazwini.

He went to Mashhad in 1886 and stayed there for one year, practicing asceticism in one of the rooms on the upper floor of the Atiq courtyard in the holy shrine of Imam al-Rida.

He left Mashhad in 1897 to Shiraz, learning medicine and studying Avicenna's law under Mirza Ja'far Tabib.

The major points of his spiritual instructions to his pupils were: He also greatly advised on keeping vigil, watchfulness of the actions and the soul during the day and self-accounting at nights[2].

Many of the people of Mashhad attended his funeral and he was buried in 'Atiq courtyard of the holy Shrine of Imam al-Rida (a).

Nakhodaki's works were compiled by his son in a book called Nishan az bi Nishanha in two volumes which includes a gloss on Shaykh Buhari Hamedani's Tadhkirat al-Muttaqin, some letters to some disciples, scripts of some of his meetings, treatises mostly on mystical and moral topics such as Tawhid, Wilaya, love of the Ahl al-Bayt (a), love, piety and ascesis, Muslims' mutual right towards each other, du'a and the conditions for accepting it and sincerity.