List of smallest galaxies
Below is a list of the 'smallest known galaxies' ordered by their diameters. Every galaxy on this list is below 20,000 light-years and they are sorted in sorted in ascending order.
List
| Name | Diameter | Notes |
| Ursa Major III | 9.6 | Could be a star cluster instead of a galaxy. |
| M60-UCD1 | 158 ± 3.26 | |
| Andromeda XVIII | 650 ± 48 | |
| GN-z11 | 4,000 ± 2,000 | |
| UGC 11411 | ~5,600 | |
| UGC 6541 | ~5,700 | |
| Messier 32 | 8,000 | |
| Sextans A | ~8,000 | |
| NGC 4118 | ~8,100 | |
| Sextans B | ~8,900 | |
| NGC 6822 | ~9,200 | |
| Messier 110 | 17,050 | |
| Small Magellanic Cloud | 18,900 |