Tsna is a village in Luninyets Raion, in Brest Region, Belarus. Tsna lies at 135 m above sea level. It has 401 inhabitants. The nearest city is Luninyets, 13.1 km to the west. Among the landmarks around are Church of Saint Nicholas in Kažan-Haradok (4.5 km), Church of the Nativity of Our Lady in Lachva (8.2 km) and Exaltation of the Holy Cross church in Luninets (13.7 km).

Also written Цна.