Merrimac may refer to:
Place names Merrimac, Queensland, Australia Electoral district of Merrimac
United States Merrimac, California Merrimac, Illinois Merrimac, Kentucky Merrimac, Massachusetts, the original town with the name "Merrimac" Merrimac, Virginia Merrimac, Mingo County, West Virginia Merrimac (town), Wisconsin, a town Merrimac, Wisconsin, a village Merrimack River, in Massachusetts and New Hampshire, of which Merrimac is an earlier spelling
See also Merrimac coup USS Merrimack, several, some spelled "Merrimac" Merrimack (disambiguation) Meramec (disambiguation)