Gwynn

Gwynn is a surname of Welsh origin, a variant of Gwyn, from the Welsh word Gwyn meaning “white” or “fair.” The spelling with a double n is common in Wales and among Welsh communities abroad, and the name has spread to other English-speaking countries where it appears across various professions.

Notable bearers of the surname include Tony Gwynn (1960–2014), an American professional baseball outfielder who spent his career with the San Diego Padres and was elected to the Baseball Hall of Fame. The name has appeared in multiple fields through other individuals as well, but Tony Gwynn remains the most widely recognized bearer.

Gwynn is related to other Welsh-derived surnames such as Gwyn, Gwynne, and Gwinn. While primarily used as a surname, Gwynn can also appear in given-name contexts in some Welsh-influenced naming traditions, though such usage is uncommon.