| Sekiyado Castle 関宿城 | |
|---|---|
| Noda, Chiba Prefecture, Japan | |
 Reconstructed Main Keep of Sekiyado Castle | |
  Sekiyado Castle 関宿城  Sekiyado Castle 関宿城 | |
| Coordinates | 36°05′48.34″N 139°46′48.61″E / 36.0967611°N 139.7801694°E |
| Type | flatland-style Japanese castle |
| Site information | |
| Owner | reconstructed 1995 |
| Open to the public | yes |
| Site history | |
| Built | 1590 |
| Built by | Matsudaira Yasumoto |
| In use | Edo period |
| Demolished | 1875 |
Sekiyado Castle (関宿城, Sekiyado-jō) is a Japanese castle located in Noda, northwestern Chiba Prefecture, Japan. At the end of the Edo period, Sekiyado Castle was home to the Kuse clan, daimyō of Sekiyado Domain.