Mączno is a village in the administrative district of Gmina Tuczno, within Wałcz County, West Pomeranian Voivodeship, in north-western Poland. It lies approximately 10 km north-east of Tuczno, 16 km west of Wałcz, and 113 km east of the regional capital Szczecin. The village has a population of 70. Before 1772 the area was part of Kingdom of Poland, 1772-1945 Prussia and Germany. For more on its history, see Wałcz County.