Grennan

== English == === Etymology === As an English surname of Norman origin, from Old French grenon (“mustache”), from Vulgar Latin *granonem (“facial hair, mustache”), from Frankish *granu, from Proto-Germanic *granō (“awn, beard-hair, hair-tips, mustache”). As an Irish surname, variant of Greenan. === Proper noun === Grennan (plural Grennans) A surname from Irish. ==== Statistics ==== According to the 2010 United States Census, Grennan is the 28049th most common surname in the United States, belonging to 854 individuals. Grennan is most common among White (95.55%) individuals. === Further reading === Hanks, Patrick, editor (2003), “Grennan”, in Dictionary of American Family Names, volume 2, New York: Oxford University Press, →ISBN, page 83.