Bom Jardim da Serra is a municipality in the state of Santa Catarina in the South region of Brazil. It has an area of approximately 935 km².

The city is one of the coldest in Brazil and sometimes there is chance of snow.

Located at 1,465 meters above sea level, Bom Jardim da Serra is a calm city, with its 4,300 inhabitants. The average temperature is 5 °C (41 °F) in the winter and 14 °C (57 °F) during the summer.