All around the world, Kaltsis (Kaltsis 
) is an extremely rare unknown gender forename. Much more prevalently, Kaltsis is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Kaltsis | Greece, Germany, Australia, United States, New Zealand |
Mr, Stefanos, Antonios, Christos, Dimitris, Georgios, Lefteris, Nikolaos, Vaggelis, Stephanos, Aristides, Christine, Demetrios, Dimitrios, Evangelos, Vasileios, Anastasios, Athanasios, Socrates, Panagiotis, Ioannis, Lasheia, Zoe, Aris, John, Tina, Panos, Devon, Julie, Nikos, Eleni, Spiros, Kwstas, Petros, George, Mixalis, Stavros, Georgia, Giannis, Vasilis, and Konstantinos