Family name Kalapnath (Kalapnath 
) , in all the world, is a very rare last name. The surname Kalapnath is habitual in the United States, where it is an extremely rare surname, and India. Much more prevalently, Kalapnath is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kalapnath | United States, India |