Deryn, derived from the Welsh name Dereadh, is a unisex given name of Welsh origin. It was popularized in the English-speaking world through the works of Diana Wynne Jones, who used it as the protagonist's name in her novel "Howl's Moving Castle." The name has since gained recognition and has been chosen by parents for their children, particularly in Wales and among those with an affinity for Welsh culture or unique names. Deryn is also sometimes associated with the Welsh word "derwydd," which translates to "druid," further emphasizing its Welsh roots and cultural significance.
The name Deryn saw its peak popularity between 1993 and 1999, with a high of 14 births in 1998. However, it appears that the number of births with this name has been decreasing since then, with only 5 or fewer births per year from 2004 onwards. Despite this decline, there have been fluctuations, such as another peak of 12 births in 2006 and a recent increase to 8 births in 2020. Overall, the name Deryn has seen a total of 195 births between 1993 and 2020.