Last name 柯曾 (Curzon 
, 柯曾, Curzen ) , around the world, is quite a rare family name. The surname 柯曾 is characteristic of Malta, where it is quite a rare surname, the United Kingdom, and New Zealand, where it is a rare surname. Measured by absolute frequency, it is the most numerous in the United Kingdom, the United States, and Canada. Very seldom, 柯曾 is the forename as well as the last name.