# Flags depicting the Southern Cross

The Southern Cross or Crux, a constellation visible in the Southern Hemisphere, is depicted on flags and coats of arms of various countries and sub-national entities. This star constellation is visible mostly in the southern hemisphere and it therefore symbolises the southern location of its users.
The term Southern Cross can also refer to the blue saltire as used in various flags of the Confederate States of America in the American Civil War.
This list is an incomplete list and some of the flags in this list might not have official status. Flag proportions may vary between the different flags, and sometimes even vary between different versions of the same flag.

## National flags of countries in the Southern Hemisphere

* Flag of Australia
* Flag of Brazil
* Flag of New Zealand
* Flag of Papua New Guinea
* Flag of Samoa

## Other flags of the Commonwealth of Australia

* Queen's Personal Australian Flag (1962–2022)
* King's Personal Australian Flag
* Australian Red Ensign
* Royal Australian Air Force Ensign
* Australian Civil Air Ensign
* Royal Australian Navy Ensign
* Flag of the Australian Border Force
* Flag of the Australian Capital Territory
* Flag of the Northern Territory
* Flag of New South Wales
* Flag of the governor of New South Wales
* Flag of Victoria
* Flag of the governor of Victoria
* Flag of Christmas Island
* Flag of Cocos Islands
* Flag of Dangar Island
* Flag of Scotland Island
* Flag of the South Sea Islanders
* Eureka Flag
* Flag of the Australian Anti-Transportation League
* Australian Federation Flag
* National Colonial Flag for Australia
* Flag of New South Wales (1870–1876)
* Flag of South Australia (1870–1876)
* Flag of Tasmania (1875)
* Flag of Victoria (1870–1877)
* Victorian Red Ensign (1870–1877)

## Other flags of the Federative Republic of Brazil

* Presidential Standard of Brazil
* Vice Presidential Standard of Brazil
* Flag of the Minister of Defense of Brazil
* Flag of the Federal Senate
* Flag of Assis
* Flag of Bom Sucesso do Sul
* Flag of Cachoeiro de Itapemirim
* Flag of Cruzeiro do Sul, Acre
* Flag of Diamantino
* Flag of Extrema
* Flag of Goiás
* Flag of Goioerê
* Flag of Igaporã
* Flag of Ijuí
* Flag of Ilha Comprida
* Flag of Itamarandiba
* Flag of Itauçu
* Flag of Jaguaripe
* Flag of Joinville
* Flag of Londrina
* Flag of Mairiporã
* Flag of Maringá
* Flag of Monte Santo, Bahia
* Flag of Paraná
* Flag of Cruzeiro do Sul, Paraná
* Flag of Peruíbe
* Flag of Pindamonhangaba
* Flag of Quaraí
* Flag of Rio Claro, Rio de Janeiro
* Flag of Tefé

## Other flags of the Realm of New Zealand

* Queen's Personal New Zealand Flag (1962–2022)
* Flag of the governor-general
* Flag of Niue
* Flag of Tokelau
* New Zealand Red Ensign
* Royal New Zealand Navy Ensign
* New Zealand Civil Air Ensign
* New Zealand Police Ensign
* Burgee of the Royal New Zealand Yacht Squadron
* Ensign of the Royal New Zealand Yacht Squadron

## Other flags of Papua New Guinea

* Papua New Guinea Naval Ensign
* Flag of East New Britain Province
* Flag of New Ireland Province
* Flag of Simbu Province
* Flag of Gulf Province
* Flag of West New Britain Province
* Flag of Western Province

## Other flags in South America

* Flag of the Southern Common Market (Spanish)
* Flag of the Southern Common Market (Portuguese)
* Flag of Coronel Dorrego Partido, Argentina
* Flag of El Chaltén, Argentina
* Flag of Santa Cruz Province, Argentina
* Flag of Tierra del Fuego Province, Argentina
* Flag of Concón, Chile
* Flag of Coquimbo Region, Chile
* Flag of Los Lagos Region, Chile
* Flag of Magallanes Region, Chile
* Flag of the Colonia Department, Uruguay

## Other flags with the Southern Cross

* Olympic Flag of Australasia
* Flag of the German East Africa Company
* Flag of the Reichskolonialbund, often misattributed to New Swabia
* Flag of Sonsorol, Palau
* Flag of SANDF Joint Operations Division
* Flag of the Southern African Vexillological Association
* English Australian heritage flag
* Scottish Australian heritage flag
* Welsh Australian heritage flag
* Irish Australian heritage flag
* Cornish Australian heritage flag
* Manx Australian heritage flag
* Adnyamathanha peoples flag
* Aṉangu peoples flag
* Sledge flag used by Louis Bernacchi during the Discovery Expedition (1901–1904)
* British Empire flag
* Flag of the Pan-American Exposition (1901)