Ryna is likely a variant of Rina or an English-form adaptation of Irish and Hebrew-linked names.
Ryna most likely derives from Rina, a name with multiple independent origins that converged over time into a single euphonious form. In Hebrew, Rina (רינה) means 'joy,' 'song,' or 'shout of happiness' — a name given to daughters as an expression of delight at their arrival. This Hebrew Rina has been used in Jewish communities across the diaspora for generations, carrying with it the exuberant quality of its meaning: not a quiet contentment but an outright, voiced rejoicing.
Separately, Rina and its variants function as short forms of longer names across multiple European traditions — as a clipping of Marina (from the Latin marinus, 'of the sea'), Katrina (the Norse and Dutch form of Katherine), or Sabrina (of disputed Celtic origin). This means that Rina and Ryna can arrive at the same destination via very different etymological journeys, giving the name an unusually broad cultural range. The 'y' variant Ryna is found particularly in Eastern European contexts — Ukrainian, Russian, and Polish naming traditions all have analogous forms — and gives the name a slightly more distinctive written identity.
In contemporary usage, Ryna belongs to that class of short, melodic feminine names — alongside Lena, Mina, and Zara — that have benefited from a broader cultural preference for names that are easy to pronounce in any language, visually uncluttered, and free from the weight of an overly famous historical bearer. It is a name that leaves room for its owner to define it.