| Seki-Ray | |
| Cover: | Image-Gackt_seki-ray.jpg |
| Type: | single |
| Artist: | Gackt |
| Album: | Rebirth |
| Released: | March 8, 2000 |
| Genre: | Symphonic rock |
| Length: | 13:39 |
| Label: | Nippon Crown |
| Producer: | Gackt |
| Prev Title: | Oasis |
| Prev Year: | 2000 |
| Next Title: | Saikai (Story) |
| Next Year: | 2000 |
is a single released by Gackt on March 8, 2000, under Nippon Crown.[1] It peaked at seventh place on the Oricon weekly chart and charted for six weeks.[2]