Sakamoto Castle (坂本城, Sakamoto-jō) was a lakeside castle in the Sengoku period, located in Ōtsu, Shiga Prefecture, Japan.

[4] After the loss of Battle of Yamazaki, Mitsuhide tried to return to the castle but he was killed on the way.

[4] Surrounded by Toyotomi's army, Mitsuhide's adopted son Akechi Hidemitsu set fire to the castle and killed himself.

[5] (Stones and materials were transferred to Ōtsu Castle.

[5][3] (Low stone wall remains in the Lake Biwa and can be seen when the water level drops.