Family name استلي (Astley 
, استلي) , around the world, is quite a rare cognomen. The cognomen استلي is characteristic of Isle of Man, where it is quite a common surname, the United Kingdom, where it is quite a rare surname, and New Zealand. Not in comparison with a country's population, it is the most numerous in the United Kingdom, the United States, and Australia. Much less frequently, استلي is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Astley | Jamaica, Canada, United Kingdom, United States, Australia |