| Conflict: | Siege of Toyama |
| Partof: | Toyotomi Hideyoshi's supremacy |
| Date: | August 1585 |
| Place: | Etchu province |
| Map Type: | Japan Toyama Prefecture#Japan |
| Map Relief: | y |
| Result: | Toyotomi victory |
| Combatant1: | Toyotomi forces |
| Combatant2: | Sassa Narimasa's forces |
| Commander1: | Toyotomi Hideyoshi Horio Yoshiharu Maeda Toshinaga Hachiya Yoritaka Kanamori Nagachika |
| Commander2: | Sassa Narimasa |
| Strength1: | 100,000 (speculation) |
| Strength2: | 20,000 (speculation) |
The siege of Toyama was a battle during the Azuchi-Momoyama period (16th century) of Japan.
During the late summer of August 1585, Toyotomi Hideyoshi had led his army of around 100,000 soldiers against Sassa Narimasa, a once former ally many years past.
During the siege of Toyama, Toyotomi's senior commander Maeda Toshinaga would play a very prominent role within the overall attack. In the end, Narimasa's defence was shattered, thus allowing Toyotomi supremacy over Etchu province.[1]