Sund may refer to:
Places In northern Europe, there are more than a hundred straits named Sund, see: Sound (geography).
Sund, Åland, a municipality in Finland Sund, Flakstad, a village in Flakstad municipality, Nordland county, Norway Sund, Hemnes, a village in Hemnes municipality, Nordland county, Norway Sund, Faroe Islands, a town in the Faroe Islands Sund, Trosa, a village in Trosa Municipality, Sweden Sund, Ydre, a hamlet in Ydre Municipality, Sweden Sund Municipality, a former municipality in the old Hordaland county, Norway Øresund, a strait between the Baltic Sea and the North Sea Sunds, Denmark
People Al Sund (1902–1951), American boxer Lenny Sund (1904–1972), American boxer Steven Sund, former chief of the United States Capitol Police
Other uses Sudden unexplained nocturnal death, a type of Sudden arrhythmic death syndrome Sundanese script (ISO 15924 code)