Surname Crok (Crok 
, Crockard 
) , worldwide, is a rare family name. The last name Crok is characteristic of Netherlands, where it is a rare surname, the United Kingdom, and New Zealand, where it is a very rare surname. Measured by absolute frequency, it is commonest in the United Kingdom, the United States, and Netherlands. Much less frequently, Crok is the forename as well as the last name.