Cognomen Publio (Publio 
) , in all the world, is quite a rare last name. The surname Publio is habitual in Venezuela, where it is quite a rare surname, Spain, where it is a rare surname, and Nicaragua. Measured by absolute frequency, this name is the most popular in Latin America and the Caribbean, particularly Brazil, Venezuela, and Mexico. Also, Publio is the forename as well as the last name.