Striker or rich
Rhyker is a modern creative spelling of the Dutch surname Ryker. It is most commonly associated with the Dutch word 'rijker', meaning wealthier, or the Middle Low German word 'recke', meaning striker or powerful. In recent years, it has gained popularity in the US as a rugged, occupational-sounding name.
Less common today
Rhyker isn't in the latest US Top 1000. It last peaked at #2,990 in 2016.
US births per 5-year period, 1990βpresent (SSA data).