Horodok Castle (Ukrainian: Городоцький замок) was a lost defensive structure in the village of Horodok of the Zalishchyky urban hromada in the Chortkiv Raion of Ternopil Oblast of Ukraine.

There was a castle and city fortifications in the village of Horodok in the Chortkiv Raion.

[3] In 1600, a part of the crown army was stationed in the castle, which later went on the Wallachian campaign of Jan Zamoyski.

[4] The town with the castle and fortifications can be seen on the map of Guillaume Le Vasseur de Beauplan of the 17th century.

The castle with four bastions is also marked on the map of Friedrich von Mieg.