Hoosac is an Algonquian word meaning place of stones.
Hoosic, Hoosick or Hoosac may refer to:
Communities Hoosac, Montana, an unincorporated community in Fergus County Hoosick, New York, a town in Rensselaer County Hoosick Falls, New York, a village in the above town
Geography Hoosac Range, a mountain range in Western Massachusetts Hoosic River, a tributary of the Hudson River
Other Hoosac School, an Episcopalian private school in Hoosick, New York Hoosac Tunnel, also called Hoosic or Hoosick Tunnel, in Massachusetts Hoosick Street, a street in Troy, New York