Cognomen Спок (Spock 
, Спок) , throughout the world, is a rare surname. The cognomen Спок is characteristic of Austria, where it is a rare surname, New Zealand, and the United States, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in the United States, Austria, and China. Much less frequently, Спок is the forename as well as the last name.