Reyn is of Germanic origin, derived from an ancient name meaning 'king'. It was popular among the Anglo-Saxons and later spread to other European countries during the Middle Ages. The name Reyn has a strong, authoritative sound that reflects its royal derivation. It reached peak popularity in the 19th century but remains less common today, allowing it to stand out as an unique yet timeless choice.
The name Reyn experienced its peak popularity between 1985 and 1996, with a significant rise in births during this period. However, it seems to have declined since the late 1990s, with fewer than 10 births per year recorded from 2000 onwards. The total number of births with the name Reyn over these years is 291.