Family name Coldy (Coldy 
) , globally, is a very rare cognomen. The surname Coldy is habitual in Canada, where it is an extremely rare surname, the United Kingdom, and the United States. More frequently, Coldy is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Coldy | United Kingdom, South Africa, United States, Canada, Democratic Republic of the Congo |