Family name Маллой (Malloy 
, Malloj 
, Malloi 
) , worldwide, is a common last name. The last name Маллой is habitual in the United States, where it is quite a rare surname, New Zealand, and Canada. In absolute terms, this name is the most popular in the United States, the United Kingdom, and Canada. Much less frequently, Маллой is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Malloy | Australia, South Africa, Canada, United Kingdom, United States |
| Malloj | India, North Macedonia |
| Malloi | Canada, France, Russia, United States, India |
| Маллой | Russia |