Cognomen Ранахан (Ранахан 
, Ranakhan 
, Ranahan 
) , all over the world, is a rare family name. The family name Ранахан is characteristic of Kyrgyzstan, where it is quite a rare surname, Ireland, where it is a rare surname, and Canada. Not in comparison with a country's population, the name is most common in the United States, Kyrgyzstan, and Canada. Also, Ранахан is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ранахан | Kazakhstan, Belarus, Russia, Azerbaijan, Kyrgyzstan |
| Ranakhan | United States, India, Saudi Arabia |
| Ranahan | Canada, New Zealand, Ireland, United Kingdom, United States |