Seiji Ueda (上田 清二, Ueda Seiji, born 1952[2]) is a Japanese astronomer.
He is a prolific discoverer of minor planets.
Between 1987 and 2000, Ueda (in collaboration with Hiroshi Kaneda) discovered 705 asteroids.
[3] He holds an MD and Ph.D. from Stanford University and is on the staff at the Graduate University for Advanced Study in Japan.
The inner main-belt asteroid 4676 Uedaseiji, discovered in 1990, is named for him.