Soleyman (Sulaymān/Shelomo) Kohan Ṣedq (1886–1946) was a modernist leader of the Jewish community in Iran. His family moved to Tehran from Gulpāygān. Kohan Ṣedq became an officer in the gendarmerie and served as its treasurer. He was one of the first Zionist activists in Iran.

After the Balfour Declaration (1917) the Anjuman-i Farhangī-yi Javānān-i Yahūdī (Pers. Cultural Association of Young Jews) was founded in Tehran. Under the leadership of Kohan Ṣedq it organized a committee called Anjuman-i Taqhviyat-i Zabān-i ʿIbrī (Pers. Association for Strengthening the Hebrew L…