Waterford–Tipperary East was a parliamentary constituency represented in Dáil Éireann, the lower house of the Irish parliament or Oireachtas from 1921 to 1923. The constituency elected 5 deputies (Teachtaí Dála, commonly known as TDs) to the Dáil, on the system of proportional representation by means of the single transferable vote (PR-STV).

The constituency was created in 1921 as a 5-seat constituency, under the Government of Ireland Act 1920, for the 1921 general election to the House of Commons of Southern Ireland, whose members formed the 2nd Dáil.

It succeeded the constituencies of County Waterford, Waterford City and Tipperary East which were used to elect the Members of the 1st Dáil and earlier UK House of Commons members.

It was abolished under the Electoral Act 1923, when it was replaced by 2 new constituencies. East Tipperary became part of the new Tipperary constituency and Waterford became part of the new Waterford constituency.

It covered all of County Waterford and the eastern part of County Tipperary.

Note: The columns in this table are used only for presentational purposes, and no significance should be attached to the order of columns. For details of the order in which seats were won at each election, see the detailed results of that election.

• Dáil constituencies
• Politics of the Republic of Ireland
• Historic Dáil constituencies
• Elections in the Republic of Ireland