Family name Saiphet (สายเพชร 
, สายเพ็ชร , Saiphet 
) , all over the world, is quite a rare last name. The family name Saiphet is characteristic of South-eastern Asia, particularly Thailand, where it is quite a rare surname. Likewise, Saiphet is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| สายเพชร, สายเพ็ชร | Thailand |
| Saiphet | Thailand, United States |