The 1934–35 League of Ireland was the fourteenth season of the League of Ireland.
Bohemians were the defending champions.
Dolphin won their first title.Cork Bohemians and Shelbourne were not re-elected to the League, while Waterford and Sligo Rovers were elected in their place.
Waterford were re-elected after a two-year absence, while Sligo Rovers became the first team from Connacht to compete in the League.
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