Isthmus (disambiguation)

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An isthmus is a strip of land connecting two larger bodies of land.

Isthmus may also refer to:

• Isthmus (album), a 2022 album by Irish musician Seamus O'Muineachain
• Isthmus (Cos), an ancient town on the Greek island of Cos
• Isthmus (newspaper), a monthly newspaper in Madison, Wisconsin
• An anatomically narrow part of an organ; see List of anatomical isthmi
• The visible medial third of the uterine tube is the isthmus of uterine tube or isthmus tubae uterinae
• An edge in a graph whose deletion increases the number of connected components of the graph; see Bridge (graph theory)
• A fictional banana republic in the James Bond film Licence to Kill