The name Gwynne is of Welsh origin, derived from the word 'gwyn,' which means 'fair' or 'blond.' It was traditionally used as a surname before evolving into a given name in the 19th century. Gwynne is also associated with the Welsh goddess Gwenhwyfar, who is often depicted as a woman of great beauty and valor.
The name Gwynne appears to have been quite popular from the 1940s onwards, with a significant increase in births recorded between 1940 and 1951. The peak was reached in 1951 with 48 births. However, the popularity of the name declined steadily thereafter, with fewer than 20 births per year from the late 1960s onwards. In recent years (2013-2023), there have been only six births each year.