The Association is a perpetual hereditary association of people bearing the same surname, or having descended from an ancestor with that surname, or any of the variant spellings of the name Plunket (Plunkett, Plonket, Plunkitt, Plunkit, Plunked, Plunkidd, Plunkid, Planchet, Blanchet) [the Gaelic form of Plunket is Pluincéid], and other fine families. The association is a non-profit organization, open to any and all individuals as set out in these Articles of Association, without regard to, race, color, creed, religious affiliation, age or gender. The name of this Association shall be The Clan Plunket/Plunkett Association, and shall include all surnames descended from our progenitor, Brian Boruma mac Cennetig Dal gCais, the 175th and Last High King of Ireland, Donnchad mac Briain Dal gCais, his son, King of Munster, the 176th Monarch of Ireland, Ard-rí na h'Éireann, Pluincéid Donnchad mac Briain, his son, Oliver of Bulin or Boilcan, his son, whose family was the first to come to Bulin (Boilean), and Walter Plunket, his son, the first man to use the Plunket surname.
The aim of the Association is to promote and foster all the interests of the Clan Plunket/Plunkett Association at home in Ireland, overseas and around the world. To promote and foster kinship, friendship and camaraderie amongst all of the names and their descendants. To establish and maintain an Executive Secretary Office, as a central point for communications for all members throughout the world. To create communications amongst members by collecting, distributing, and publishing information about all aspects of the association. To research and maintain an archive of materials relating to the Clan Plunket/Plunkett and their ancestors for the use of association members, including conducting, promoting or assisting research work into Clan Plunket/Plunkett History. To develop and maintain a library and database for the use of Association members in tracing their ancestry and family history.