The Posey surname is a habitational name, taken on from Pusey in present-day Oxfordshire, but formerly in Wiltshire. The place name comes from the Old English "peose", or "piosu" meaning "pea" "island," collectively meaning "island, or dry ground in marsh, where peas grow." 
The surname Posey was first found in Oxfordshire at Pusey, a village and civil parish. The earliest record of the village was in the Domesday Book of 1086 where it was listed as Pesei.  Another reference claims "the parish derives its name from the family of Pusey, to whom the manor was granted by Canute the Great; the place was in his time in the possession of Charles Pusey, Esq., who had recovered it in chancery before Lord Chancellor Jeffreys." 
This web page shows only a small excerpt of our Posey research. Another 97 words (7 lines of text) covering the years 1710, 1594, 1665, 1650 and 1727 are included under the topic Early Posey History in all our PDF Extended History products and printed products wherever possible.
Mr. Ernest M. Posey, American Machinist's Mate First Class working aboard the ship "USS Arizona" when she sunk during the Japanese attack on Pearl Harbor on 7th December 1941, he survived the sinking 
^ Mills, A.D., Dictionary of English Place-Names. Oxford: Oxford University Press, 1991. Print. (ISBN 0-19-869156-4)
^ Williams, Dr Ann. And G.H. Martin, Eds., Domesday Book A Complete Translation. London: Penguin, 1992. Print. (ISBN 0-141-00523-8)
^ Lewis, Samuel, A Topographical Dictionary of England. Institute of Historical Research, 1848, Print.
^ Filby, P. William, Meyer, Mary K., Passenger and immigration lists index : a guide to published arrival records of about 500,000 passengers who came to the United States and Canada in the seventeenth, eighteenth, and nineteenth centuries. 1982-1985 Cumulated Supplements in Four Volumes Detroit, Mich. : Gale Research Co., 1985, Print (ISBN 0-8103-1795-8)