- Penobscot - a member of the Algonquian people belonging to the Abnaki confederacy and living in the Penobscot valley in northern Maine
--1 is a kind of Algonquian, Algonquin
- Penobscot, Penobscot River - a river in central Maine flowing into Penobscot Bay
--2 is a kind of river
--2 is a part of Maine, Pine Tree State, ME - Penobscot, Penobscot River - a river in central Maine flowing into Penobscot Bay