Rich or powerful
Derived from the Low German surname Rieker, which is a variant of Richard. It combines the elements 'ric' meaning power or ruler and 'hard' meaning brave or hardy. In modern usage, it is often associated with the Dutch word 'rijker', meaning wealthier.
First Officer of the USS Enterprise · Star Trek: The Next Generation
Bassist and singer for the band R5
American football quarterback
US births per 5-year period, 1990–present (SSA data).