Zayn ad-Dīn Yūsuf ibn Sharaf ad-Dīn (Kurdish: زەین الدین یوسف کوڕی شەرەف الدین) also called Zeyneddîn or Zeynedîn was a 14th-century Sunni Muslim scholar, qadi (Islamic judge) and former head of the 'Adawiyya order of Sufism.

The lineage of Zayn ad-Din, according to an inscription in his zawiya (Sufi lodge), can be traced back to the Banu Umayya tribe.

[1] Zayn ad-Din lived a generally ascetic and simple lifestyle of continuous worship, and died in 1324 or 1325 in his zawiya at Cairo, Egypt.

The mausoleum is constructed with the style of Mamluk architecture and was built around 1297 or 1298 by the followers of the 'Adawiyya order who remained in Egypt.

[1][4] Some attribute the mausoleum to be that of a similarly-named Zayn ad-Din Yusuf Abu al-Mahasin who organized a failed revolt against the Mamluk ruler Al-Nasir Muhammad.