Khotyn Fortress, Medieval fortress in Khotyn, Ukraine.

Khotyn Fortress is a stone fortress on the right bank of the Dniester in Khotyn, Chernivtsi Oblast, Ukraine. Its walls and towers stand on a grassy slope above the river, with two tall towers with pyramidal roofs close together on the left, linked by a crenellated wall to a lower square gate tower with an arched doorway. Behind the towers are a broad hipped-roof building and further towers with conical roofs.

The first defenses appeared in the 10th century under Prince Vladimir, securing trade routes along the Dniester at a natural chokepoint. Moldavian rulers in the 15th century expanded the complex with thicker walls and higher towers, then Ottoman forces seized it repeatedly and added their own modifications.

The fortress gave its name to Khotyn, the town that grew beside it; one explanation links the toponym to the verb "to want", another to the epic hero Khotyn Bludovich. The site is also known as Twierdza Chocim, Cetatea Hotin and Hotin Kalesi. In 2000 it became a state historical and architectural reserve, and it was voted one of the Seven Wonders of Ukraine.

A visit takes at least two hours because the complex is large and several towers require climbing steep staircases. Sturdy shoes help when exploring uneven courtyards and ramps, while shade is limited during summer months.

Scenes from several historical films were shot inside the walls because the well-preserved structures provided medieval backdrops without modern intrusions. Visitors sometimes recognize corners and courtyards that appeared in well-known productions.