His Royal Highness Tengku Abdullah ibni Sultan Ahmad Shah is the first son of the current Sultan of Pahang.
Tengku Abdullah is the current Tengku Mahkota (crown prince) of Pahang, Malaysia.
He was born in 1959 in Pekan, Pahang by Tengku Ampuan Afzan, the Tengku Ampuan of Pahang.
He was married to the current Sultan of Johor's sister, Tunku Azizah. They were blessed with 5 children
- Tengku Hassanal Ibrahim Alam Shah, born on 17 September 1995. He is currently studying at Sherborne School, England.
- Tengku Muhammad Iskandar Ri'ayatuddin Shah, born on 17 August 1997. He is studying at Harrow School, England.
- Tengku Afzan Amina Hafizatu'llah, born 11 September 2001(twin)
- Tengku Ahmad Ismail Mu'adzam Shah, born 11 September 2001 (twin)
- Tengku Nur Jihan Khalsom Athiy'atu'llah, 27 April 2002
Tengku Afzan (left) and Tengku Jihan (right)
- Tengku Iman Afzan, born 1993
- Tengku Illisha Ameera, born 1994
- Tengku Ilyana, born 1997