Kopytenskaya Tower, Gate tower in Smolensk, Russia.

Kopytenskaya Tower is a surviving gate tower of the Smolensk fortress wall, standing in Lopatinsky Garden park, with one side facing Alexander Pushkin Square and the other facing an earthen rampart. It is a quadrangular structure with passage gates, has a roof, and was previously restored. It currently has no functional purpose.

The tower stood between the Bubleyka Tower and an unnamed round tower in the Smolensk fortress wall. During the Polish siege of Smolensk in 1609–1611, the main Polish assault struck the Kopytenskaya Tower. Under Catherine II the gateway was walled up and the tower was adapted to house the Smolensk provincial archive. In 1918 looters set it on fire and the structure was badly damaged.

The tower's name has two proposed origins: proximity to cattle pastures or trade. Under Catherine II the gate was walled up and the tower served as the Smolensk provincial archive, a use visitors can learn about on site.

The tower stands in Lopatinsky Garden, with one side facing the Alexander Pushkin square and the other the earthen rampart. It has no function today and is not open inside; visitors see it from the park paths. The restored tower keeps its roof and its gate opening, now walled up.

The tower features specially positioned arrow slits and cannon ports at different heights that allowed defenders to target approaching enemies from multiple angles. This careful arrangement of openings shows how medieval engineers maximized the space for defensive strength.