Last name Pontia (Ponza 
, Pontia 
) , in all the world, is quite a rare surname. The family name Pontia is characteristic of Italy, where it is quite a rare surname, Uruguay, where it is a rare surname, and Nicaragua. Measured by absolute frequency, it is commonest in Italy, Tanzania, and the United States. Much less frequently, Pontia is the forename as well as the last name.