Family name Райкер (Riker 
, Райкер 
) , worldwide, is quite a rare surname. The last name Райкер is characteristic of Bermuda, where it is quite a common surname, the United States, where it is a rare surname, and New Zealand. Measured by absolute frequency, it is commonest in the United States, Brazil, and Germany. Much less frequently, Райкер is the forename as well as the last name.