Of German origin.
It was used as a surname, in the form of “Riker”.
From the old German word “rike”, meaning “rich”.
It is also associated with the name prefix “Ry”.
American country singer Lee Brice and ice hockey player Ryan Kesler named their sons “Ryker”.
Ryker appeared in the U.S.A. name charts in the early ‘90’s and it has been climbing ever since.