title: Topsail (disambiguation)
text: # Topsail (disambiguation)
  
  A topsail is the second square sail up a mast in a sailboat. Topsail may also refer to:
  
  ## In geography
  
  ### Canada
  
  * Topsail, Newfoundland and Labrador, a community in Conception Bay South, Newfoundland and Labrador, Canada
     * Topsail (electoral district), a provincial electoral district in Newfoundland and Labrador
  
  ### United States
  
  * Topsail Island, one of the barrier islands on the southern coast of North Carolina, USA
     * Topsail Beach, North Carolina, a community on the southern part of Topsail Island
     * North Topsail Beach, North Carolina, a community on the northern part of Topsail Island
  
  ## In other uses
  
  * Topsail, a software project originating with U.S. Department of Defense's Information Awareness Office and later moved for further development with the National Security Agency
  