Kennebecasis often refers to the Kennebecasis River and surrounding Kennebecasis Valley in New Brunswick, Canada. It can also mean:

New Brunswick, Canada Kennebecasis Island, an island in the Kennebecasis River. Kennebecasis Valley High School Kennebecasis (electoral district), a riding that elects members to the Legislative Assembly of New Brunswick Kennebecasis Regional Police Force, a police branch serving the Kennebecasis region.

Other Kanabicases Adventurers Society, also known as R.K.A.S., a guild of privateers formed during the late Eighteenth century