| Honorific-Prefix: | Yang Amat Berbahagia Tun |
| Syed Zahiruddin Syed Hassan | |
| Order: | 4th |
| Office: | Yang di-Pertua Negeri of Malacca |
| Term Start: | 23 May 1976 |
| Term End: | 30 November 1984 |
| Predecessor: | Abdul Aziz Abdul Majid |
| Successor: | Syed Ahmad Syed Mahmud Shahabuddin |
| Birth Name: | Syed Zahiruddin bin Syed Hassan |
| Birth Date: | 1918 10, df=yes |
| Death Place: | Petaling Jaya, Selangor, Malaysia |
| Resting Place: | Bukit Kiara Muslim Cemetery, Kuala Lumpur |
| Birth Place: | Pondok Tanjung, Kerian, Perak, Federated Malay States, British Malaya (now Malaysia) |
| Spouse: | Halimah Md. Noh |
| Children: | 10 |
| Father: | Syed Hassan Syed Ibrahim |
| Mother: | Raja Halimah Raja Abdullah |
Tun Syed Zahiruddin bin Syed Hassan (11 October 1918 – 20 April 2013)[1] was a Malaysian politician. He was the Yang di-Pertua Negeri of Malacca from 1976 to 1984 and the Ambassador and High commissioner to both Ireland in 1975 and the United Kingdom in 1974.[2] He was also the Orang Besar Empat Perak. SMK Tun Syed Zahiruddin also named after him.
Zahiruddin died on 20 April 2013 of a kidney failure, aged 95 and was buried at Bukit Kiara Muslim Cemetery in Kuala Lumpur.[3]
Several places were named after him, including: