| Event: | Diving |
| Games: | 2003 |
| Prev: | 2001 |
| Next: | 2005 |
The Diving competition at the 22nd SEA Games was held December 7–10, 2003 in My Dinh Aquatics Centre, Hanoi, Vietnam.
| 3 m springboard | ||||
| 10 m platform | ||||
| Synchronised 3 m springboard | Suchart Pichi Meerit Insawang | Jaime Asok Niño Carog | Muhammad Nasrullah Akhmad Sukran Jamjami | |
| Synchronised 10 m platform | Rexel Ryan Fabriga Jaime Asok | Husaini Noor Muhammad Nasrullah | Sareerapat Pimsamsee Suchart Pichi |
| 3 m springboard | ||||
| 10 m platform | ||||
| Synchronised 3 m springboard | Mai Thị Hải Yến Hoàng Thanh Trà | Grace Junita Leong Mun Yee | Cesiel Domenios Sheila Mae Pérez | |
| Synchronised 10 m platform | Shenny Ratna Amelia Herliani Sukmahati | Leong Mun Yee Cheong Jun Hoong | Sukrutai Tommaoros Chantrakulcholt |