Syedna Tayyeb Zainuddin Bin Syedi Jivanjee (born: 1782 AD; died on 15 Zilqad al-Haraam 1252 AH/1836 AD, Surat, India) was the 45th Da'i al-Mutlaq of the Dawoodi Bohra sect.

He succeeded his brother, the 44th Da'i, Syedna Mohammed Ezzuddin Bin Syedi Jivanjee, to the religious post at the age of 38 years.

His father's name was Syedi Jivanjee bin Shaikh Dawood bhai while his mother's name was Buji BaiSaheba binte Mulla Ahmed-ji.

He was the elder brother of the previous Da'i (Mohammed Ezzuddin).

Tayyeb Zainuddin became Da'i al-Mutlaq in 1236 AH/1821 AD.