| Athlone–Longford | |
| Type: | Dáil |
| Year: | 1937 |
| Abolished: | 1948 |
| Map Entity: | Ireland |
| Map Size: | 200px |
| Seats: | 3 |
| Local Council Label: | Local government areas |
| Previous: | Longford–Westmeath |
| Next: | Longford–Westmeath |
Athlone–Longford was a parliamentary constituency represented in Dáil Éireann, the lower house of the Irish parliament or Oireachtas from 1937 to 1948. The constituency elected 3 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 for the 1937 general election under the Electoral (Revision of Constituencies) Act 1935,[1] replacing the old Longford–Westmeath constituency.
Under the Electoral (Amendment) Act 1947, the constituency was abolished, and the Longford–Westmeath constituency was re-created for the 1948 general election.[2]
The constituency consisted of all of County Longford and parts of counties Roscommon and Westmeath. In the 1935 Act, its boundaries were defined as:[1]