Cognomen Kalto (Kalto 
) , around the globe, is a very rare family name. The surname Kalto is habitual in Finland, where it is a rare surname, Morocco, where it is a very rare surname, and Nigeria, where it is an extremely rare surname. Likewise, Kalto is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kalto | Philippines, India, Nigeria, Finland, Morocco |
| kari kalto Finnish ice hockey player, FI (b. 1978) |
|