Minato Castle (湊城, Minato-jō) was a Japanese castle in what is now Tsuchizaki Minato, Akita, Akita Prefecture, Japan.

Throughout the Muromachi period, Minato Castle was home to the Ando clan, daimyō of Akita Domain, rulers of northern Dewa Province.

Ando "Big Dipper" Chikasue of the Hiyama Ando went down from Hiyama Castle to Minato Castle uniting the two clan branches.

[2] After the Battle of Sekigahara, his son, Akita Sanesue was moved to Shishido, in Hitachi Province, and Satake Yoshinobu of Hitachi was relegated to Minato Castle in 1602.

2-minute walk straight from the exit of the station and you can soon see Tsuchizaki Shinmeisha Shrine on your left.