Trefethen is a Cornish surname.Hanks, Patrick et al: The Oxford Names Companion Notable people with the surname include:
Anne Trefethen, British computer scientist, former wife of Nick Florence Newman Trefethen (1921–2012), American codebreaker, poet, and English professor, wife of Lloyd M. and mother of Nick Lloyd M. Trefethen (1919–2001), American fluid dynamics researcher, husband of Florence and father of Nick Nick Trefethen (born 1955), British mathematician, son of Florence and Lloyd M., former husband of Anne
See also Trefethen Vineyards, a winery in Napa County, California, United States
References