Family name Рукер (Rooker 
, Рукер 
) , in the world, is quite a rare cognomen. The surname Рукер is characteristic of Reunion, where it is quite a common surname, Netherlands, where it is quite a rare surname, and the United States, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in the United States, the United Kingdom, and Netherlands.