Seiya Nakano (中野 誠也, Nakano Seiya, born September 16, 1938) is a veteran Japanese actor from Chiba Prefecture. He has been a member of Haiyuza Theater Company since 1961.
| Movie | Moonlight Shadow | Mitsuru | 2021-09-10 |
| Movie | The Neighbor | Tsutsui Fumio | 2011-01-29 |
| Movie | Ino Tadataka: Meridian Dreams | 2001-11-17 | |
| Series | Dragonfly | Noboru Hatta | 1988-10-07 |
| Movie | The Shogunate's Harem | Hotta | 1986-06-14 |
| Movie | Ningyo Sashichi: The Cat’s Golden Claws of Death | 1984-01-12 | |
| Movie | Amagi Pass | Police | 1983-02-19 |
| Movie | When We are Old | 1982-11-03 | |
| Movie | Fifth Movement | 1981-09-19 | |
| Movie | The Woman | 1980-11-22 | |
| Movie | The Incident | Noguchi | 1978-06-03 |
| Movie | Skyscraper Murder Case | 1976-04-03 | |
| Movie | Long Journey into Love | 1973-07-07 | |
| Movie | Love Stopped the Runaway Train | 1973-12-15 | |
| Movie | Forward, Young People! | 1969-05-10 | |
| Movie | Assignment Cloud | Sasaki | 1966-09-17 |
| Movie | The Kii River | Shintani Seiichiro, Hana's son | 1966-06-11 |
| Movie | Escape from Japan | Lee | 1964-07-03 |
| Movie | Police Precinct: Missing Person | 1964-12-05 | |
| Movie | Police Precinct Part 21 | 1963-06-14 |