Last name Seneka (Seneka 
, סנקה 
, Сенека 
) , in the entire world, is a rare cognomen. The surname Seneka is characteristic of Papua New Guinea, where it is quite a rare surname, Israel, where it is a rare surname, and New Zealand. Not in comparison with a country's population, it is commonest in Papua New Guinea, South Africa, and Germany. Likewise, Seneka is the forename as well as the last name.