Kent Island is an island situated in the Chesapeake Bay in the U.S. state of Maryland.

Kent Island may also refer to:

• Kent Island (California) in Marin County
• Kent Island, New Brunswick, in Canada
• Kent Island (Queensland), in Australia
• Kent Island (Chile), in Aysén Region

• Kent Island Research Facility, a U.S. National Security Agency facility in Maryland
• Ships named USS Kent Island, including:
  • USS Kent Island (AG-78), a liberty ship
  • USS Kent Island (AKS-26), a liberty ship

• Kent (disambiguation)