Wampanoag people
Iyannough (also Iyanough) was an American Indian sachem and leader of the Mattachiest (Mattakeese, a sub-group of the Wampanoag people) tribe of Cummaquid in the area of what is now Barnstable, Massachusetts. The village of Hyannis, the Wianno section of Osterville, and Iyanough Road (Route 132) are all named after him.