- Japanese: 明石城 (Akashi-jou)
- Type: Flatland-Mountain
- Founder: Ogasawara Tadazane
- Year: 1617
- Demolished: 1874
- Reconstructed: 1999(Wall)
- Location: Harima province
Akashi castle is a castle in Hyôgo prefecture (formerly Harima province). Towards the beginning of the Edo period, it was granted to a son-in-law of Honda Tadamasa, along with a 100,000 koku fief.[1]