Connacht Senior Cup is an association football cup competition organised by the Connacht Football Association.

This cup competition should not be confused with the more regularly played Connacht Junior Cup which has effectively been the top level competition for non-League of Ireland clubs when the Senior Cup has been inactive.

Junior sides did well and featured in the first ten finals, winning four of them.

In later seasons there were two more junior winners but all-Connacht Senior League finals became more common.

During this era teams from the CSL also played in a separate league cup competition known as the Connacht Senior League Challenge Cup.