The Composite Gazetteer of Antarctica (CGA) of the Scientific Committee on Antarctic Research (SCAR) is the authoritative international gazetteer containing all Antarctic toponyms published in national gazetteers, plus basic information about those names and the relevant geographical features. The Gazetteer includes also parts of the International Hydrographic Organization (IHO) General Bathymetric Chart of the Oceans (GEBCO) gazetteer for under-sea features situated south of 60° south latitude.
As of May 2019[update], the overall content of the CGA amounts to 37,893 geographic names for 19,803 features including some 500 features with two or more entirely different names, contributed by the following sources:
| Country | Names |
|---|---|
| United States | 13,192 |
| United Kingdom | 5,040 |
| Russia | 4,808 |
| New Zealand | 2,597 |
| Australia | 2,551 |
| Argentina | 2,545 |
| Chile | 1,866 |
| Norway | 1,706 |
| Bulgaria | 1,450 |
| Germany | 393 |
| Poland | 365 |
| China | 359 |
| Japan | 345 |
| France | 223 |
| GEBCO | 182 |
| Belgium | 117 |
| Italy | 53 |
| Spain | 35 |
| South Korea | 27 |
| India | 21 |
| Ecuador | 9 |
| Uruguay | 5 |
| South Africa | 2 |
| Canada | 2 |
| Ukraine | 1 |