| Fullname: | Tengku Ahmad Tajuddin bin Tengku Abdul Jalil |
| Birth Date: | 5 January 1986 |
| Birth Place: | Kangar, Perlis, Malaysia |
| Height: | 1.64 m |
| Position: | Forward |
| Years1: | 2002 |
| Clubs1: | Sapura HC |
| Years2: | 2003–12 |
| Clubs2: | Ernst & Young / Kuala Lumpur HC |
| Years3: | 2008 |
| Clubs3: | Hilversum HC |
| Years4: | 2013– |
| Clubs4: | Terengganu HT |
| Years5: | 2016 |
| Clubs5: | Uddy HC |
| Nationalteam1: | Malaysia |
| Nationalyears1: | 2005– |
| Nationalcaps1: | 214 |
Tengku Ahmad Tajuddin bin Tengku Abdul Jalil (born 5 January 1986) is a Malaysian field hockey player.
Tengku Ahmad is part of Malaysian 2010 Asian Games hockey squad that won the silver medal. Nicknamed as 'Zidane', Tengku Ahmad made his international senior debut in 2005.[1] He also part of Malaysia's 2005 World Junior hockey squad.
Tengku Ahmad made his debut in the MHL in 2002 and featured for Sapura for one year before joining Ernst and Young, who became KL HC.[2] In 2008, Tengku Ahmad had a stint with Dutch side Hilversum HC.[3] In 2013, he joined Terengganu Hockey Team.[4]