ZW

ZW or zw may refer to:

Science

• ZW sex-determination system, chromosomal in birds and some species of reptile, fish, and insect
• ZW, heterogametic genetic female designation under this system
• Zettawatt (), an SI unit of power, 10⁺²¹ watts
• Zeptowatt (), an SI unit of power, 10⁻²¹ watts
• Zwicky Catalogue (abbreviated: ), the "Catalogue of Galaxies and of Clusters of Galaxies"

Groups, organizations

• Air Wisconsin (IATA airline designator: ), a US airline
• Zulte-Waregem, Belgian association football club
• Military Gendarmerie (Poland) (; ), Polish military police

Other uses

• Zimbabwe (ISO 3166-1 alpha-2 country code ), a country in Africa
• , the country code top level domain (ccTLD) for Zimbabwe
• Zimbabwean dollar ()

See also

• ZVV
• WZ (disambiguation)
• ZWS (disambiguation)