| Tengku Baharuddin | |
| Tengku Sri Temenggung Raja of Terengganu | |
| Birth Date: | 20 December 1976 |
| Birth Place: | Terengganu, Malaysia |
| Birth Name: | Tengku Badrul Hisham Baharuddin ibni Tengku Mahmud |
| Spouse: | Noor Intan Zurina (divorced) |
| Issue: | Tengku Muhammad Ashman Tengku Muhammad Ariesh Tengku Muhammad Ozaer Tengku Muhammad Adreez Tengku Muhammad Mahmud Akbar Nasreddine Haqqani |
| Full Name: | Tengku Baharuddin ibni Almarhum Sutan Mahmud Al-Muktafi Billah Shah |
| Father: | Sultan Mahmud |
| Mother: | Cik Khadijah |
Dato' Seri Tengku Baharuddin ibni Almarhum Sultan Mahmud Al-Muktafi Billah Shah (born 20 December 1976) is the Tengku Sri Temenggung Raja of Terengganu. He is the youngest son of Sultan Mahmud of Terengganu and a younger brother of Sultan Mizan Zainal Abidin of Terengganu.
Tengku Baharuddin was born on 20 December 1976 in Terengganu. He is the son of the late Sultan Mahmud Al-Muktafi Billah Shah, Sultan of Terengganu and Cik Khadijah.
Tengku Baharuddin obtained a diploma in Hotel Management from the Singapore Hotel and Tourism Education Centre (SHATEC) in 1994 before continuing his bachelor's degree in Tourism Business and Finance (Marketing) at the University of De Montfort, United Kingdom in 1996.[1]
Tengku Baharuddin is the Director of several Group Company Groups and is also a member of the Private Company Board of Directors. He was the director of Haison Resource Bhd from 2008 to 2016.[2]
Tengku Baharuddin is the current Tengku Sri Temenggung Raja. In his royal capacity, he represented his elder brother, the Sultan of Terengganu at the formal installation ceremony of Sultan Abdul Halim as the 14th Yang di-Pertuan Agong in 2012 and at the installation ceremony of Sultan Nazrin Shah of Perak in 2015.
Thailand: