| Conflict: | Second Siege of Odawara |
| Partof: | the Sengoku period |
| Date: | 1569 |
| Place: | Odawara castle, Sagami province, Japan |
| Coordinates: | 35.251°N 139.1535°W |
| Map Type: | Japan Kanagawa Prefecture#Japan |
| Map Relief: | yes |
| Result: |
|
| Combatant1: | Forces of Takeda Shingen |
| Combatant2: | Forces of Hojo Ujiyasu |
| Commander1: | Takeda Shingen Kōsaka Masanobu Hoshina Masatoshi Sanada Yukitaka Sanada Masayuki |
| Commander2: | Hōjō Ujiyasu Hōjō Ujimasa |
| Strength1: | 20,000[1] |
| Strength2: | 20,000 |
The second Siege of Odawara took place in 1569. Takeda Shingen attacked Odawara Castle, as a response to Hōjō's intervention into Shingen invasion of Suruga Province.
In 1568, as a response to Hōjō clan intervention in Takeda invasion of Suruga Province, Takeda Shingen broke the alliance with the Hōjō, and came into Hōjō territory.
Shingen came into Musashi Province from his home province of Kai, attacking Takiyama and Hachigata Castles, where Ujiyasu's sons repulsed them.After failing at the Siege of Takiyama and Siege of Hachigata (1568), Takeda Shingen nevertheless moved to Sagami Province against the Hōjō clan capital fortress of Odawara in 1569. The siege lasted only three days, after which the Takeda forces burned the town to the ground and left.
Odawara castle itself did not fall and was still held by the Hojo, end of Shingen's campaign at Sagami Province against Hōjō clan.