Tuanku Muhriz, The Yang di-Pertuan BesarTuanku Aishah Rohani, the Tunku Ampuan Besar Tunku Zain Al-'Abidin ibni Tuanku Muhriz (Jawi: تونكو زين العابدين ابن توانكو محرز‎), (born 6 July 1982), more popularly known as Tunku 'Abidin Muhriz, is the second son of the reigning Yang di-Pertuan Besar of Negeri Sembilan in Malaysia, Tuanku Muhriz ibni Almarhum Tuanku Munawir and the reigning Tunku Ampuan Besar of Negeri Sembilan, Tuanku Aishah Rohani binti Tengku Besar Mahmud.

[2][3][4] Tunku Zain Al-'Abidin was born on 6 July 1982 at University Hospital, Petaling Jaya, Selangor, as second son and child of Tuanku Muhriz ibni Almarhum Tuanku Munawir (now the reigning Yang di-Pertuan Besar of Negeri Sembilan) and Tuanku Aishah Rohani.

His siblings are : He was educated at : He is the Pro-Chancellor of UCSI University, a Trustee of Yayasan Munarah, Yayasan Chow Kit and the Jeffrey Cheah Foundation, Founding President of the Institute for Democracy and Economic Affairs (IDEAS) and is an Honorary Major in the Malaysian Territorial Army.

Tunku 'Abidin has also performed at the Konsert Diraja UKM (National University of Malaysia Royal Concert) for the past several years.

[6] In conjunction with his father's Installation Ceremony he wrote a book about the state's history and customs, and began a major project composing a new rendition for his state's anthem, Berkatlah Yang di-Pertuan Besar Negeri Sembilan, with the Malaysian Philharmonic Orchestra.