Ali-Asghar Sadr Haj Seyyed Javadi (Persian: علی‌اصغر صدر حاج‌سیدجوادی; 1925–2018) was an Iranian writer, journalist and activist.

[4] He was an essayist on Islam and Socialism and over a fifteen years period, his gained a large following who were mostly religious laymen.

[4][5] Mehrdad Mashayekhi argues that he belonged to the Third Worldist current in Iran, and considers him among "radical nationalist intellectuals" who were closely associated with the League of Iranian Socialists.

[6] Afshin Matin-Asgari states that he had an "independent socialist background" that he shared with people with Jalal Al-e-Ahmad.

[7] In 1977, he was among the members and founders of the newly formed Iranian Committee for the Defense of Freedom and Human Rights (ICDFHR).