Surname Connlaodh (Conley 
, Conleth 
, Connlaodh) , across the world, is a common family name. The cognomen Connlaodh is characteristic of the United States, where it is quite a common surname, New Zealand, where it is quite a rare surname, and Canada. In absolute terms, this name is the most popular in the United States, Canada, and the United Kingdom. Much less frequently, Connlaodh is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Conley | Australia, Canada, New Zealand, United Kingdom, United States |
| Conleth | Germany, South Africa, Ireland, United States, Nigeria |