Isthmian
# Isthmian

Isthmian is the adjective pertaining to an isthmus.

It may also refer to:

* Isthmian Games, one of the Panhellenic Games of Ancient Greece
* Isthmian League, a regional football league covering London and South East England
* Isthmian script, one of the Mesoamerican writing-systems
* Isthmian Steamship Company, a shipping company
* Isthmian Canal Commission, an American administration commission set up to oversee the construction of the Panama Canal
