Surname Петтис (Pettis 
, Петтис 
) , all around the world, is quite a common cognomen. The last name Петтис is characteristic of the United States, where it is quite a rare surname, New Zealand, where it is a rare surname, and Israel. In absolute terms, it is the most numerous in the United States, Canada, and Argentina. Much less frequently, Петтис is the forename as well as the last name.