A Welsh surname, Gwynne comes from the Celtic term ‘gwyn’ which means white or fair in color. A native surname for Wales, the variations in spelling Gwynne include Gwynn, Gwinn, Gwine, Gwin, and Gwyn. The original Gwynne families lived in the Breconshire region of Wales. Over the decades most now lived in the central and southern portion of Wales. The high population is in Glamorgan county. There are scatterings of Gwynn families over most of England also. In Scotland Gwynne families live in Lanarkshire and Midlothian counties primarily. Within the United States the Gwynne families lived in New Jersey, New York, Pennsylvania, California, Oregon, Ohio, Maryland and Missouri. Famous: Neil Gwynne (an English actress) and Fred Gwynne (television actor).