Family name פירת' (Firth 
, פירת' 
) , in all the world, is a common cognomen. The surname פירת' is characteristic of Cayman Islands, where it is quite a common surname, Isle of Man, and the United Kingdom. Measured by absolute frequency, it most frequently occurs in the United Kingdom, the United States, and Australia. Much less frequently, פירת' is the forename as well as the last name.