Fitchburg may refer to:
Places in the United States of America Fitchburg, California Fitchburg, Kentucky Fitchburg, Massachusetts Fitchburg, Michigan Fitchburg, Wisconsin
Transportation Fitchburg Railroad, a former railroad in Massachusetts Fitchburg Line, a rail service using part of the former railroad Fitchburg station, a railroad station in Fitchburg, Massachusetts Fitchburg station (California), a former railroad station