| Sligo–Mayo East | |
| Type: | Dáil |
| Year: | 1921 |
| Abolished: | 1923 |
| Map4: | Sligo-Mayo East Dáil constituency 1921-1923.png |
| Map Entity: | Ireland |
| Map Size: | 200px |
| Seats: | 5 |
| Local Council Label: | Local government areas |
Sligo–Mayo 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 Mayo East, Sligo North and Sligo South which were used to elect the Members of the 1st Dáil and earlier United Kingdom House of Commons members. It covered all of County Sligo and the eastern parts of County Mayo.
It was abolished under the Electoral Act 1923, when it was replaced by the new Mayo South and Leitrim–Sligo constituencies which was first used in the 1923 general election to the 4th Dáil.
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