Zamastochcha (; ) is an agrotown in Minsk District, Minsk Region, Belarus. It is administratively part of Luhavaya Slabada selsoviet. It is located southeast of the capital Minsk. In 1997, it had a population of 1,953.
Zamostocze, as it was known in Polish, was an okolica szlachecka, owned by various Polish noble families, including the Ancielewski, Konstantynowicz, Mazurkiewicz, Pawà Âowicz, Rzeczycki, Suchocki, Janczewski, Narejko and Pà Âatowski families.